Sounds like you let your clients dictate what you do with your time. I also work for myself and I found myself at the same point you sound like your at. Things didn't get better until I learned to properly set the expectations of my clients with my time and projects. Getting things done right away isn't as productive as you think. Tell your clients it will take 1 week if its a single day project. This way you have 6 more days to load up more schedule work / new clients. As long as you're diligent with your due date the extended time won't be an issue.