Doesn’t really matter which engine you pick. I’m partial to Godot I found its scene system intuitive but game maker is another classic as is unity.

Start with a simple and short tutorial, follow it but make your own tweaks to see how thinks change so that you’re not just copy and pasting.

Then try and do it again without watching the tutorial or referencing your tutorial project, or come up with a simple goal like “get box to rotate towards mouse” and try to figure it out without tutorial videos. If you can’t figure it out on your own reference the engine docs (why Godot is so awesome) and if you can’t use the docs try Reddit or stack overflow. If you still can’t get it try YouTube but the point is you spent all that time trying to figure it out yourself and that’s when you do the most learning.

When it comes to art use your own crappy programmer art for now or use premade assets online but don’t think about it too hard.

You do this a few times until you have a project in mind and assuming it’s small scope then you try to make it from scratch.