This was an excellent video and very timely. I have a lot of 2D under my belt but was just starting to dabble in 3D.
I think you could manage it. A friend of mine did it with zero programming experience.
Also, check out GDQuest if you haven’t.
I’d try going to itch.io and joining a game jam. They will usually give you a theme to work around and it’s a great way to learn stuff. Every time I try to do one I try something new.