Do not envy more talented artists. Just try to work at the limit of opportunities.
This is one of the most important aspects of arts: never envy others. Unfortunately as we are only human, this is very hard not to do. But still do your best. Clear your mind of bad will and simply try to learn from all those who you think are doing better than yourself.
While doing any sort of arts is very subjective, which means, every single person will view it altogether differently, don’t let your self-assessment work against you and most importantly, don’t ever let anyone else’s talent discourage you. There will always be people who will pretend they are better than you, or who want praise for their talent. Do not let these people get to you. Just mind your own work and your own peace of soul and don’t care about other’s opinions, unless it comes from someone who wants to teach you and who wants you to improve.