askchapo

Start with Godot. It's much simpler than unity or unreal and read the starting guide here. Look up concepts you don't know and stay with the guide from tip to tail and you'll be fine. https://docs.godotengine.org/en/stable/

There's a free online book, Invent Your Own Computer Games with Python, which is a gentle introduction to programming. It starts with much simpler games than engine tutorials do, in a very intuitive language and I might start there to see if there's real interest or aptitude before moving on to an engine (Godot looks cool).

I've not used it, but Godot looks fun and approachable and iirc it's open source

Here's a Godot lesson playlist I liked https://youtube.com/playlist?list=PL9FzW-m48fn2SlrW0KoLT4n5egNdX-W9a&si=MDggIR6prZV_hIXO

in addition to coding, you should also think critically about mechanics and stuff. doesn't matter how well you can code race cars if you don't know what makes a fun track.

some games have robust modding tools, something like starcraft's custom scenarios or mario maker in your target genre would be a way to think about that stuff without having to get everything together from scratch