No experience is making ne doubt myself

I’m a self taught programmer and in my spare time I am trying to make games (at least a nice one). This current project is bigger than my capabilities, but this journey helps me learn a lot!

Here come my problem: sometimes I show a friend of mine my code, or a ask him questions on how to do stuff, and he often asks me why I want to do it that way, or what’s my reasoning. I’m usually told that there are more efficient ways, and that what I do is VERY complex, and can be done in much easier ways.

Is it normal to come up with wrong/hard solutions? I know undertale is a programming nightmare, but still, sometimes I feel like I’m not good at this…