Hey Thomas! (and also Jane!). I've been in the Dutch games industry for a while, but recently got out of it. My experience has been radically different from most as I've started as an indie and only did work for other bigger indies to make money.
The biggest thing I can give you as advice (besides the already amazing and very good advice of michaelplzno), is that you just
start. The biggest thing in this industry (or any for that manner) is
learning how to communicate properly. Most of the projects I've seen gone bad with new (or even old) blood in the team has been because of this. So, if your "soft" (social) skills need some work, don't forget to start there.
Also, if you're looking for a somewhat fun and inspirational way to make some smaller games, I can definitely recommend
PICO-8, which is kind of like a NES that never existed. A lot of people (even some noteworthy devs) have published really small and fun games on there. Dylan Bennett has a great explanation on the console:
If you get the hang of the console, whether it's on the design, art, music, sound or code side (or all of them!), you can start moving on bigger projects to see what skills you'd like to develop further. The inherent limits of PICO8 will keep you from wanting to make things that are too big, which is usually a pretty common mistake people make.
Best of luck on your journey! Can't wait to see what you make!