Congrats! Keep it up. At 15 I was writing bot scripts to run video game characters around for me haha. I soon realized I liked coding more than even playing the game.
And then came modding etc. Sadly, it seems like modding is dying, at least for the few modern games I'm interested in. (So really kudos to minecraft for teaching a new generation about mods and programming along the way, my nephew is going through that phase).
A good way to find games that have mods is to look at the "Steam workshop" page on a steam game listing. Here's the listing sorted by games that have a "Steam workshop" (which is kind of steam's interface for managing mods): https://store.steampowered.com/search/?category2=30