I think I'm a good developer. I have pretty decent debugging skills, including pulling apart disassembled x86 and other architecture code.

I'm fascinated by how things work.

But almost everything is catered for by a library. Or has already been done.

I find it enjoyable to create a library or program myself, but get disheartened when I find some library or program that is written seemingly very well, compared to my own code. And then I start to think I'm not a good developer after all.

Sort of relates to my previous rant about repeatedly rewriting code.

Applies to me doing programming as a hobby but probably affects my code at work as well... I just can't help but think my code is probably awful compared to what someone else might write.

...then I see incredibly ugly, messy, badly written code by other people and I feel better...

I suppose it is like an artist who sees amazing works but cannot paint to that standard, but is well beyond drawing stick figures with crayons.

Sounds like a trivial problem but it probably impedes my progress with a lot of things.