Hi,
Note very pleasant reading.
Why not try and share your flying cost's with friends or other pilots. It's becoming very popular and keeps the cost's down. It would be a shame for you to let all that hard work gaining your PPL to let it lapse.
I don't have any answers about your living circumstances but am sure your parents are aware of your situation and would most likely want to help you. Even though they have there own difficulties presently.
Good luck.
Scottish Flyer 182