Hi, so my teeth are badly unaligned and retainer won't fit in my mouth, is there a way to fix this?

Since the teeth have moved, you should move them back, then get a new retainer....  Retainers retain, not align.  Can try Invisalign, Inman Aligner, or braces all over (but not very long).

Dear Anonymous_012,Thank you for posting your question on Real Self. I will do my best to answer your question with the information provided.I am sorry that you had a bad experience with your first orthodontist.  I recommend setting up a consultation with a different orthodontist.  They will determine whether or not you need an adjustment, a new retainer or retreatment.Good luck and I hope that this helps.Best,Dr. Jenn

The only way to correct this problem is to go back into braces or Invisalign to return your teeth to their previous position. This isn't a warranty situation so you can visit another orthodontist for your treatment. You will then need to wear your retainer indefinately if you don't want your teeth to move again.