I would keep all three appointments. The topic you are dealing with is difficult and the right fit is very important. I would not cancel the regular T until you have found the right fit. You can work out payments with your insurance company. Yes, it's expensive. If you are able to self pay I would encourage you to spend the money to get the right person who will help you to walk out of sessions feeling stronger, cared for, and heard, with real help. Being left to feel uncertain, unheard, not feeling secure in the relationship is too painful.