How to stop being extremly jealous in relationship, and stop getting extremly mad at small things? how to help these problems

Counseling: Without knowing more about your situation, i would suggest talking to a therapist or counselor about your issues which may be symptoms of ongoing issues with things like depression, poor self-esteem, insecurity, etc. Help is available and worthwhile. Good luck!

Constructive coping: Two techniques that can reduce jealousy focus on maintaining a sense of independence and self worth. The first is self-reliance, which involves staying calm and avoiding anger by refusing to dwell on the unfairness of the situation. The second is self-bolstering, boosting one's self-esteem by doing something nice for oneself and focusing on one's good qualities.