IMO - Have you ever been to Thailand before? I suggest before selling everything first you stay for 2-3 months and live like you would if you were planning on living there and see if the life, other than a holiday, is what you expect it to be. 2 vastly different lifestyles from being on holiday to actually living in a town.
Thinking your definition of can't leave Thailand and theirs may differ extensively. Good luck, your injury sounds horrible, but unless you are lying in a hospital practically in a coma they will literally wheel you to the gate from my experience.
sorry i am confused, if i understand it correctly, the normal visa is 90 days, how are you able to extend it out to 9 months and how many times can you do this? sorry to be a pain and ignorant, trying to get my head around the many ambiguous terms on the sites
EDITED: I have just read it was the STV extension but that has been discontinued.
Cheers everyone for the many answers, it's given the wife 🤣 and I some great places to start and go from there. Always appreciated and if I offended anyone with my Aussie reference of my better half, sorry about that, it's just a pet term we use in Australia for our spouses.