You need help from a professional. I don't have a lot of time for banks, but go to them and look them straight in the eye and tell them, "I need help".
They have a duty to help and advise and when they see you are worried enough to come to them in person, it will show them you want to fix the problemt. It will be necessary for you to eat a bit of humble pie, but, you cannot get out of the mess on your own.
Their advice will not be nice, and it will not be easy, but, you could find a way (eventually) out of the dilemma.
Remember ignoring the problem is not an option. You need rapid action to stop the interest eating you alive
Do it now
Old Salt