I would cut out time you spend on your advertising, like webpage upkeep, and just use ready-made sites that do work for you, like
http://www.gatheringguide.com/ec/event_production.html . If you have that up, you only have to post it once, and it will keep drawing in business so you don't have to think about it any more.
That's been a big time saver for me, since I'm working at home with a 6 month old daughter, running my own business, and don't have much free time anymore.
Also, you could try hiring an assistant for any work someone untrained can do-- maybe someone from a local high school who will work cheaply.
Good luck. I know it's hard.