Things I learned from last year...
1) The HATE is real. Even though there are those who can critique, some envy what you're trying to do and will try to make you doubt your abilities or skill level. Ignore those people- even if your skill level isnt quite where it needs to be, if you're a true student of art & learning, you'll get to where you need to be eventually. Like another post stated- you do you.
2) Art is hard- especially on the business/financial side. I've had to put off certain moves artwise, coz finances became tight.
3) You're never too old to learn- I feel great putting aside my fears & biases in learning how to use a Wacom tablet, Manga Studio(digital inks- still learning), and taking on the elephant in my room known as digital coloring. Trying to keep up the desire to learn as much as I can!
4) Dont self impose a deadline or timetable if you dont have to- it's okay to have a deadline; it helps get things done, but dont put unrealistic pressure on yourself. Just do what you can do, and be patient...it all works itself out in the end.
5) Sleep is a beautiful thing- get some when you have the chance!