Nearly half of my non ideal client appointments have been canceled, re-scheduled, or not shown up. I have tried numerous things to try and keep them though it seems nothing is working. What suggestions can you give me that might work better or help?

This is why you stop working with non-ideal, in this case unprofessional and inconsiderate, clients as quickly as possible. There simply is no solution to the problems created by doing business with non-Ideal Clients. Hopefully the stress of putting up with their crap will motivate you to build your Ideal Client Community as quickly as possible so you don’t have to deal with this sort of thing.