Sure did!
Although it's my very first try at games as well, I've been around playing and programming for quite some time.
If I can offer you my 5 cents, start with a plain 2D, grasp the concepts, create, make mistakes, debug, laugh, cry, start all over again. The most important part of it all - of LIFE itself, to be fair - is to learn things while enjoying the ride. 3D is just an added extra dimension, same concepts and fancier assets; if you have a solid 2D grasp, it'll be a breeze to jump to it in the future.
As a personal side project I'm also studying pixel-art. Been a fan since the 80s and having a blast :)
Started following your profile, I'd like very much to see its development.
Have an awesome week!🍻