If the strong emotions you had when your parents first split up last for a long time and are really getting in the way of the usual things you do in your life, ask for help. Feeling depressed, having trouble managing your anger, feeling extremely anxious, thinking about hurting yourself or escaping, or just feeling out of control are all situations that you can and should get help for.
Tell your parents, teacher, counsellor or another adult you trust that you want to talk to someone who can help you. If you aren't getting the help you think you need, keep asking until you get it.