Welcome to the UE4 community!
As a semi serious 3D moddeler who started from almost nothing. I can say a few credible things. I’ve been modeling for 4 years now and have made no money. Not because I suck but because 3D models focused on making money will make you very unhappy.
Only model for the purpose of making yourself better until your work can add competition to the feild you prefer. In other words work to better yourself, not to make money or fame.
As for programing. I can’t do anything.
I recommend Blender rather than autodesk Maya. Blender actually works for longer than a half hour.
As for tutorials, Unreal YouTube channel should get you started. Same for TeslaDev.
For Blender try Blender cookie.
Best of luck to you! Don’t be afraid to ask questions!