Don’t wait another minute.
I deeply appreciate the challenge you have in your life with a possessive, jealous and controlling boyfriend. But this isn’t a life-enhancing relationship. This is a restrictive and highly conditional relationship that doesn’t have much of a future without your boyfriend being in ongoing therapy, including an anger management group.
Angry, jealous, controlling men are very resistant to change, and the amount of control they need over their girlfriend or spouse is typically insatiable. Even if they back off in one area, it accelerates in another.
I would encourage the two of you to make an appointment with a couples counselor—mostly for the purpose of getting your boyfriend in front of a professional. My guess is the couples counselor will recommend your boyfriend have his own therapy, which would be essential for this relationship to go forward.
The real work, however, has to do with you asking yourself what allowed you to get into such a relationship and stay in it. Discovering the answers to these questions will be important as you move forward. The find help tab at the top can point you in the direction of therapists in your area.
Wishing you patience and peace,