There is no shortage of success. It is available to everyone. Competition is not the best way to succeed. Most of those who dominated some area or sector achieved dominance by doing something new. They had a strong commitment and believed that success was their duty.
Every time you are jealous of someone’s success, discipline yourself and your thinking to equate any success with the possibility for more success.
If someone gains something, it doesn’t mean that you lose. You can look for alternatives and other even better ways to achieve success.