[header] How to cope with mental instability as a teenager [title] See a therapist. [step] You might be scared or nervous to tell your parents or friends about the problems you have. A therapist is someone you can talk to and trust. 
They can help you work through problems and make changes to help your life feel more stable. A therapist can help you cope with problems, find ways to relieve stress, and can help you talk about your struggles in a safe and supporting environment.