I get this question from people in completely different fields: accountants, engineers, pharmacists, teachers, customer service staff. The wording is almost always the same. I am in another field and I want to move into marketing, where do I start, and does my old experience count for anything.
The answer people usually get is a list of courses. That is the worst possible answer, not because courses are bad, but because the list treats your old experience as a zero to be cleared away. It is not a zero. It is the biggest advantage you have, if you put it in the right place.
The question is being asked backwards
People ask what should I learn before they ask where am I coming in from. Those are not the same question. Marketing is not one job. It is a word covering a group of different jobs.
That is not an opinion, it is visible in how the platforms structure their own training. Open Google's own Skillshop platform and Google Ads training alone splits into seven separate tracks: Search, Display, Measurement, Video, Shopping, Apps and Discovery. That is before Google Marketing Platform, which adds Analytics, Display & Video 360, Search Ads 360, Campaign Manager 360 and further tracks for creative and programmatic work.
One advertising product, at one company, split across seven certifications. Anyone telling you to learn digital marketing is describing something broader than a full career. So the first step is not a course. It is choosing a door, and the sensible door is the one your old field makes you better at than a fresh graduate.
Your old field is the advantage, not the handicap
People arriving from another field tend to feel late. What they are actually missing is tools, and that is the shortest part of this. What they have and others lack is an understanding of a specific market from the inside, and that takes years you cannot compress into a course.
The difference shows up fast in the work. Someone who can run a campaign but does not understand why the customer buys, against someone who understands why the customer buys and is learning to run a campaign. The second person gets to a result sooner, because the hard half is already there.
- From accounting or finance: measurement, budgets, cost of acquisition. You are comfortable in the part most marketers avoid.
- From engineering or tech: tracking, automation, data. Highest demand, thinnest supply.
- From pharmacy or medicine: healthcare and pharma marketing, and knowing what claims are legally allowed. That market is effectively closed to people who do not understand it.
- From teaching: explaining, simplifying, building a syllabus. That is educational content, which is the strongest growth channel right now.
- From customer service or sales: you have heard the real objection a thousand times. That is the copy nobody else can write.
The decision after that is whether to specialise or stay broad, and I wrote that out in full in the career path in digital marketing rather than repeat it here.
What to learn first, while you still have a job
I do not advise anyone to quit in order to learn. Learning while employed is slower but safe. Learning with no income makes you take the first offer that arrives, however bad it is.
The order I suggest: one thing that measures, one thing that brings in work, and one thing that explains the product. So analytics, one channel you go deep on, and the market you came from. Do not open five channels at once, because you will not be able to tell what worked.
A lot of this is available free from the platforms themselves, which makes the best course question far less important than people think. And one honest note: the Skillshop page itself says nothing about price, so do not assume everything on it is free without checking. The practical weekly order for studying while employed is in my plan for studying marketing around a job.
The portfolio problem when you have no clients yet
This is the real obstacle, and certificates do not solve it. Whoever makes the hiring decision wants to see something you did, and you have not worked yet.
What works: one small piece of real work on something you already understand. If you came from healthcare, take a clinic or a pharmacy that knows you and do one thing properly, free at first if needed. Not because free work is a good idea, but because you are buying a case you can describe with numbers.
What the decision turns on is whether you can explain what you did, why, and what came out. That is covered in building a marketing portfolio with no experience.
The honest limit here: one real, measured case beats ten certificates. And an invented case falls apart in the first five minutes of an interview, so do not build one.
How long it actually takes
I will not give you a number, because anyone who says six months and you are ready is selling you something. What I can describe is the shape. The first couple of months you learn the vocabulary. Then a long uncomfortable stretch where you can do things but cannot say why they worked. After that, judgement starts forming.
That middle stretch is where most people quit, because it feels like no progress. It is progress, but in judgement rather than in facts, and nothing measures judgement, so you cannot feel it.
One more honest point: this move usually lowers your income in the first year before it raises it. If that is not possible in your circumstances right now, that is not failure, it is timing. The two are different.
When paying for structure is the right call
When you have tried learning alone and found out you are not consistent, or when you need someone to correct your work rather than explain things to you. A course buys order and accountability, not information. Information is available cheaper.
If you reach that point and start looking at paid structured training, the thing to ask about is not the syllabus. It is what exactly happens after the course ends. U-Courses set out what job support in a course actually means and who provides it, which is worth reading before you pay anyone.
And do not pay for a course because of the certificate. A certificate opens a door at certain employers. A portfolio opens considerably more.
What I would not do
I would not quit before I had marketing income for three consecutive months. I would not start with five channels. And I would not buy a course before trying to learn free for two months, because that is how you find out whether your problem is information or consistency.
Most of all, I would not treat the field I came from as something to hide on a CV. It is the part that makes you different, and most people strip it out because it feels like a weakness. If you are still unsure the field even has jobs in it, look at the jobs that actually exist in digital marketing before any other decision.