How to get over being jealous

I can relate, I am the jealous type, like extremely jealous,I'm not the one to blame my past for anything, but sadly for my jealousy I have too. Jealousy is the fear of loosing someone you love, most will say, ohhh don't worry, if they really love you, there is no reason to be jealous, they won't leave, trust them... what mist tend to forget is that jealousy is NOT only related to a partner, In my case, I was abandoned at a very young age by the one person on earth I should trust the most and that should never leaves me deliberately, my own mother, she left me at the orphanage at 3yrs, turned and left, never came back. After that I was abandoned by so many people, if not physically then emotionally and mentally, that I developed what's called, the orphan syndrome, it can be cured if treated young and early when diagnose, but if not, the sequel are permanent. In my case it's permanent. Even if I trust one with my life, the fear of loosing them overpowers it, no matter what I try or do. Sometimes it can calm down a little,but the smallest little thing can trigger jealousy to raise up. And Even I know I'm the only one my jealousy can hurt, cause most the people in my life or that have been in my life are not jealous at all or don't believe in jealousy.. I can't sadly help it, and as weird as it may seem the fact that they aren't jealous at all, doesn't help as it's like they don't care or mind if they loose me.. I know it's all in my head, I'm trying really hard to work on myself, but it's who I am

Good luck