@Frustrated, my son must be about your age. He has had ME since he was 13. He got worse when he was doing too much. And he has improved when he has reduced activity. He is still far from well, but his current level of activity allows him to enjoy life and to gather qualifications and experience that will help him achieve his aims.
My daughter got ME at the same time as my son (and I). She improved back to very nearly full health over two years. She now goes to university and has a full and good life.
You do have choices although of course there are consequences and only you can decide what is possible for you. At some point though, if you keep pushing yourself, your body may do the deciding. My son eventually got to a point where he was sleeping 20 hours a day and could hardly walk.
I really encourage you to talk to your parents and try to arrange for you to take the rest of the school year off. One year of school is very little in the scheme of things. Don't frame it in terms of dropping out - it's just a break to help you recover. What country do you live in?
This whole thread
http://forums.phoenixrising.me/inde...ng-teenager-with-cfs.50626/page-2#post-835473
would be good for you and your parents to read. The particular post I've linked to on the thread gives some more detail about my son's experience.
This thread addresses your question about the likelihood of recovery for young people.
http://forums.phoenixrising.me/inde...ecovery-how-much-do-we-know-about-this.50570/