As an artist, you have to remember that your art isn’t about what someone else says or thinks about you or your art. Your art is an expression of yourself and how you see the world. The best artist can convey perfectly what they see in their mind and birth it into reality.This is the idea of being most true to yourself and your own vision of what your art should be. This is, ultimately, the point of all of your learning as a creative person.
You are going to meet people who will be well-meaning with heartfelt intentions that will want to advise you on what they think you should do. Listen to what people say, but realize that it is you that decides if that is right for you–some of this advice is going to be valuable, and some advice is just not applicable in your particular case. What you have in your brain and what someone else has in his/her brain for what your art “should” be are so often two different things. The greatest creative relationship is one that helps you become more of who you are as an artist– pushes you further in the direction that you are already going in. It feels like walking with the wind nudging your back, but after it all, you own it.
I believe that there are no mistakes in art and maybe no ultimate “correct” way to make art. At the same time, it’s really fortunate when you can get some guidance from someone with more experience than yourself about exercises to do or a new way to work a given medium, etc. If you are blessed to get some tips from someone you see as a great artist, seize that opportunity. In my experience, this is a gem; a gift! Savor it and memorize it.
The best advice that I have received (so far) on how to become a better artist is to practice and to make more; to keep doing it– daily, if possible. That, I believe, will raise you to awesome levels.