The only person holding yourself back is you.

Jealousy over others success is really the projection of frustration in your own life. Besides, nothing good can come of allowing hate to creep into your mind over someone doing well.

The real solution is to focus on what you want to achieve. You can compare yourself to others as a way of measuring progress, but when it becomes a personal vendetta you've gone too far.

Most successful people I know celebrate and promote others. Their attitude is "A rising tide lifts all boats". Its that kind of cooperative and inclusive behavior that benefits everyone, instead of wasting it on petty jealousy.