[snarf21]

You already part of the way there just by asking. Wanting to get better and knowing you can learn more is the first and hardest step. I'd also suggest that you force yourself to become more introspective. When you make a silly mistake that breaks your code, spend time thinking about why it broke and why you didn't see it the first time. Find a mentor that is smarter and more talented. Talk to them, look at their code, etc.