You have three options.

1. Learn management. If you want people to do things to your satisfaction, you have to be explicit about your expectations, communicate it, monitor progress, and review results. Even if you get a talented coder to help you, he probably has different ideas about how things need to be done, and you still need to clarify who's responsible for what.

2. Give some of your projects to others. Instead of split a 50k project, you give this entire project to others, maybe charge a fee. You'll earn less and have less headaches.

3. Raise your fees so you have less clients.