If someone else's success causes a feeling of inferiority, someone's joy is resentment, and luck is the impression of his own deprivation, this means that he himself is empty.
There are many reasons for envy, but there is one that did not depend on you. A tendency to compare oneself with others, combined with an inferiority complex. Sounds scary, right? :) The roots of this are in childhood, when parents, apparently trying to develop in us a desire for healthy competition, also compared their children with the best intentions with those who ate better, dressed faster, memorized poems. The comparison was, of course, not in our favor, and therefore the effect was exactly the opposite. That is, we remember well that you can compare yourself with someone, guided by the criterion "better or worse". Moreover, "worse" is always about us.
But comparing ourselves with others is inadequate, at least because we feel ourselves around the clock. But we see someone for several minutes and then only the front side of success.
How to fix childhood "mistakes"? You need to understand what exactly you envy and then develop your strategy for achieving the goal. You cannot completely repeat someone else's path, even if you have learned a lot, you will have your own, no less exciting. You can paint the points of achieving the goal, the necessary resources, deeds, actions, steps. This will be a rough plan. Why approximate? Because consciousness has given your body a task, but it will be solved not only by your mind, but also by your intuition. She is stronger, wiser and deeper and will correct your original plans, take you to your goal, perhaps in a shorter way. Or maybe more interesting. It all depends on your internal needs. Thank life every day for the steps you have taken, even small ones ...