sweetie..thats a tough one since most jealousy is about self esteem and insecurity.. and they aren't 'easy fixes'... At the very least it would seem spending some time with you.. learning about you and takng more responsiblity for yourself would help.. but that is a process. The bottom line is that if you don't start now to deal with you that, YOU'RE RIGHT, it will distroy this and most of your future relationships in the future.
While its great to get 'strokes' or compliments' from people outside of yourself.. that is no guarantee that that would help in the long run... In the mean time, a little humility.. honesty about yourself and good comunication will go a long way with future partners.