How can i stop jealousy from ruining my relationship?

Self-worth: You may need to seek out personal, one on one counseling to understand your self-worth. Jealousy may stem from your own self-esteem. Find a counselor for personal advice. Hope that helps.

Are you the jealous: Person? First you have to decide if you are really willing to change that behavior. If you are - make a committment. Cognitive behavioral therapy would be a good treatment for this problem. Seeking out this treatment would be a good first step.