Sounds like you're really going through it at the moment Lya. Our daughter (14) has rages too and the opposite where she's as high as a kite and quite out of control. We were told this is most probably due to her ASD but not to rule out the beginnings of bi-polar. She developed an acute stress reaction because of the way she was feeling all the time and is now on medication called risperidone which (amongst other things) is used to treat mood swings in ASD and her rages have really settled down. Trouble is though, there are some quite hefty side effects and she seems to have lost her sparkle now so I'm not sure how I feel about the medication. It's lovely not having the incredible rages and mood swings, but I'm not sure we've found quite the right level of medication yet as it's still early days.
It's really difficult to know what to do for the best isn't it? I just feel really sad about the whole thing at the moment so you have my absolute sympathy Lya. Are you getting any support from anywhere?
xxxxx