Just a thought, I didn't move out til I was married, but I used to do a LOT of housesitting for friends and family. It was great, because I could move out and collect my sanity away from my big family, learn a bit about looking after myself re cooking and cleaning and just being on my own y'know? At one point I was away from home for 3 months, for a friend who went up north, and this included paying bills and feeding pets etc. Great learning curve with a timeline, like dipping my toe in.

Not sure if its a feasible option for you, just thought I'd put it out there