I'm sorry you have to go through this. My sister has M.E so I know it's hell.
The others have given really good advice. You just have to find out what are you are capable of and do that. It can get better and you will have periods when you have enough energy to do loads. Just don't try and do too much because you'll wipe yourself out for days afterwards.
I know that's really hard advice to follow. Hang on in there. I'll be thinking of you.