Hi Tommy! I'm tiny, pleasure to meet you! Glad you have decided this and seem serious about it
I am fairly new to the pixel art community. The best advice I could give you is to be passionate.
Being passionate means being determined not only to learn something but to perfect it, and pixel art isn't the easiest thing if you want to create something original and fantastic. It also means picking yourself back up even when you go through a bunch of shading and lighting fails (talking about myself

).
Pursue your dreams and make them come true.
You should work on a portfolio for people to admire your skills as a pixel artist and post them in the Portfolio section of the forums.
Be open to commissions, and practice practice practice!

Start a Twitter as well, to open up more opportunities of networking.
You got this! Don't give up!
If you need anything PM me