Im always so unhappy nowadays, i hate my life?

Talk to a trusted adult-doctor,school nurse or counselor. You sound like your dealing with depression. Remember that at your age hormones have a lot to do with your moods. But you may need some help and there is no shame in that. Get some help. Good luck. Take care of yourself you are missing your mom. Talk to one of your friends sometimes they are going through similar things and you may find some support from them. A friend would be a good thing right now. Nurture a friend and encourage them to be part of your life. A boyfriend is not enough you need some female support right now.