We are all influenced by others, but you choose who and how much.
It might be healthy to look up to someone who is a few years further along doing something that you want to do, to learn from them and be inspired to do well. It might be healthy to look at someone who is at about the same stage as you in what you want to achieve, but doing it better than you. What can you learn from them?
What can you take from observing others to push you to be a better person? And how can you do this without a useless feeling of not enoughness?
Strive with a sense of confidence. Choose who you learn from and listen to carefully. You are enough. That doesn’t mean you are perfect.