You are pretty young to have other people putting their problems on your shoulders. I think you have a right to put down the burden and tell them it's too much pressure for you at your age. Refuse to listen or if you have to, make polite neutral comments but keep refusing to take responsibility for the problems they have. Keep reminding yourself that at your age, your main responsibilities involve getting an education, learning a job skill, socialization and growing up emotionally stable. Don't accept inappropriate guilt. If that is what you are feeling, keep reminding yourself that inappropriate guilt is not a legitimate feeling; like an alcoholic's craving for alcohol you may not be able to stop having certain self-destructive feelings but you do not need to act on them. Take care of yourself. Ultimately, that is the best thing you can do for others as well.

I mean in my philosophy class were supposed to mediate but I just can't I don't know why...

me too ,i think way to much and as a result i cant sleep and i talk too much.

meditation