Here's what worked for me. You could say I was an evangelist of sorts. I did not set out to be an evangelist, more to educate myself about devops, and https://sysadmincasts.com was the result. Ended up getting hired by one of the companies I created a video on (but not in an evangelist role).

Here's some things to think about:

  - you do not need to be an expert
  - you can teach yourself to be an evangelist (probably the best way)
  - 22 is *young* (I have 10 years on you)
  - almost better if you know nothing as you learn from the ground up
  - you will learn everything you need to know along the way
  - possible to brute force your way into it via consistent hard work

Here's my suggested strategy:

Start a blog or youtube channel where you review products around an eco-system. Boom, you now run your own evangelist company, congratulations! Keep at this consistently for a few years. Focus your reviews on a specific type of company or series of product lines. You will get on people's radar. This will bring in job offers as you have proved yourself as an evangelist. A few things that I can think of off the top of my head re: the journey.

  - pick an emerging tech eco-system (I chose devops)
  - something shiny and new (devops)
  - educate yourself about said eco-system
  - educate others about what you learned (brain dumps)
  - chunk these into small 1-2k word postings (blog or video)
  - was doing a weekly text/video release (hope to get back on a schedule)
  - it will be extremely painful in the beginning as you will suck (I did)
  - you will quickly become better and improve your craft
  - have a release cycle to keep you motivated with an end in sight
  - set clear goals for what each posting will be about
  - show examples (code, workflow, diagrams, etc)
  - weekly cycle will force you to keep things small and workable
  - just takes time and effort to research
  - it's easy to write simple brain dumps about what you learned
  - this could take years (it did in my case)
  - don't write crap postings or spam content
  - we are sick of corporate marketing/hype/vapor crap
  - an unpolished human-to-human conversation works very well!
  - show example use-cases (who, how, what, why, when, etc)
  - think unboxing video for tech products (what does the gui look like)
  - people will recognize you provide value
  - this will open doors beyond your wildest expectations
  - you will gradually become an expert
  - very rewarding to help people from around the world
  - can take over your life if you let it
  - force yourself to keep quality up over all else (don't be lazy)
  - you can do this alongside your day job
  - builds proof that you can be an evangelist
  - you will become much better at distilling concepts
  - this provides extreme value for time crunched people
  - you taught yourself how to learn & keep current!

The trick is to keep yourself motivated. If you look at many information products today (podcasts, youtube channels, magazines), most of them follow a model like this, just copy it. Just the reward of helping others alone makes this worth it, so you really cannot go wrong! In that, even if you do not become a full-time evangelist, you have educated yourself, educated others, built a public profile, and that will pay off big time when looking for work in the future.