Sorry Kayla there's not so many cheap places around now other than Gayle's due to insurance. My own coach does kids in group lessons for around $50/hour (so not much more expensive than your current lessons considering they go for double the time and the coach is fully qualified and a competitive FEi rider!) I think, and she is very very good. She's taken a lot of kids from where you were previously and been able to make some really good riders out of them.
I teach for fairly good rates as well, however you'd need your own horse and my gelding that was going to be used as a schoolie is still out of action.