You identified your own fixes.
1. Stop being a control freak. Hire office lady that can handle idle chat and summarize the call and work order or sales call for you
2. If 1 can't be addressed, stop doing so many installations. Put on your PM and Sales hat and grow your business
3. Why would you not start calling until 9am? Most people are up at 7, getting kids ready for school, starting morning commute. I won't warm call before 8am, but my existing clients are more than OK with me calling my 7-7:30. By the time I arrive at their house at 8-9am, they're gone.

Don't complain about being too busy.
Talk to coach or business advisor(s) (RC?) and grow your business.