Don’t compare yourself to anyone. You are uniquely different regardless of being better or worse than other artists. Focus on improving your artwork and treat everyone with respect. Let people see the good in you, and they will love and respect you back.
Practice as much as you can! I don’t like to call it “practice” because it sounds like a workout or an assignment. It is basically “drawing.” The more you draw, the faster you progress and become better.
Believe lies when they are well-meaning. When I was thirteen, I posted my drawings in online forums and received really nice comments. Looking back at those early attempts, I realize they were awful but people still supported and encouraged me to draw. Believing their lies motivated me to work harder. Thank you to the strangers who said that I had an undeniable talent when my work was really bad. Keep my experience in mind and don’t be too harsh on yourself; you are still impressing others with your effort and that means you are on the right track.
Ask questions and learn from everyone. Watch, read and study all sorts of tutorials. It will sharpen your skills, and it’s fun to learn new techniques.
Embrace how self-teaching works. In traditional art, buy as many different materials as you can to experiment. In digital art, just keep clicking on things. That’s how I learned. It’s not a perfect way, but that’s how you build your experience and learn.
Enter art contests! Competitions encourage you to challenge yourself, have fun and make new friends. I made the character on this page for the Shonen Jump contest. Kaito was a poor boy who mistreated an old woman and was living with her curse in his unconscious mind after being in a coma due to a train accident.
Learn to accept failure. A publisher may decline, your art may become the subject of a hate thread, and you might lose contests, but every failure will make you stronger and wiser. Learn the reasons why these things happened. Is it bad luck? Or maybe you weren’t quite ready.