[usedtolurk]

You're definitely not alone in feeling like this. "Good enough" always depends on the circumstances, so the best way to know if your feelings are warranted is to get honest code reviews from the people who will be working with your code. Balance that with external reviews from programmers you look up to (expecting some contradictions) - then take your own path.

Don't despair if you get a lot of negative feedback - it's easy to improve by reading some of the books listed in this thread and repeat.

Enjoy the journey - I've yet to meet I've yet to meet someone who's reached the destination (although plenty have stopped along the way).