still trying to smile

Trying to Smile - Mississauga, Canada

I began my treatment almost two years ago with 36 trays (2 wks per tray). Towards the end of this set I was really disappointed to be told I would have 12 trays of refinements... But now my story gets worse. during my last visit to pick up #8 of 12 I insisted he tell me when I'll be able to close my bite - I didnt' start out with any bite problems. He looked concerned and ordered another bite mould and more pictures and said he would order a new set based on these new measurements.
I received a call last week - Unbelievable!! - another 25 trays have arrived!!
that would put my treatment at 73 trays - 3 years. Does it sound like I must have had a terrible smile? wrong.. in fact people were very surprised that I was going for treatment at all. I had a slightly noticable overlap in my two front teeth and some crowding at the lower molars.
I now have a completely misaligned bite - I cannot close my bite at the back at all! my front looks nice and straight but the midline is totally off on the top.
I'm not certain what I plan on doing at this point. I'm meeting with my dentist tomorrow for a consult before proceeding with these new 3rd set of aligners.
I'm stunned to say the least! what options do I have now? What guarantee is there things won't get worse!?