August I really feel for you!!! May I ask a few questions, if it in anyway over steps boundaries fell free to tell me to none of my business!!!
Was your breakup with you ex mutual or one sided? You seem so stuck and this JUST my observation, and I mean it from a good place. I would think it would be a tremendous struggle DAILY to live in a situation like that. Reminded of love lost, and bad memories. Wanting to change but getting in your own way.
Your x inlaws seem to be very involved in your lives still I totally get that. ( have overbearing ones). Your MIL most likely is coming from a good place and concerned for you and her daughter. But if its done its done and being stuck there due to circumstances must be extremely painfull and stunting. Is permanent disability and SS an option?
I feel terrible for you because I know how bad you want this... The battle between head and heart. One is always going to be wrong! Thinking of you! Hang in there, good luck at breakfast!