Unfortunately studying is required for endeavors such as this, due to the intricacies that programming a game holds.
I made a post on here about tutorials for blender, and for the Godot and Redot engines. Personally recommend Redot since they’re made up of the original big contributors, programming and donation-wise, that made up a large chunk of Godot’s progress.
Reason for the split, long story short a community manager went on a power trip and started treating the discussions like their personal soapbox before kicking those same contributors for asking them to keep drama out of software development, and the owners of the engine didn’t reign the community manager in, thus leading to Redot’s creation.
Both softwares are free and open-source (meaning can be freely modified), so you have nothing to worry about regarding payment, you don’t even need to worry about royalty fees.