(I'm also just getting started with pixel art, so take what I say with a grain of salt, but here are some things that I've either been recommended or told:)
(-Online Tutorials: If you have the money, I believe that Skillshare and Full Sail University have some good programs, but even if you can't afford them, it's not hard to find alternatives. No matter the program you're using, YouTube is sure to have a tutorial for it. Though I would think that it would benefit you to watch tutorials even if they're program is drastically different than yours, because they are likely to still have good advice. I've been watching MortMort and I've already picked up a few new tricks, and achebit has a sixteen part series about the subject.)
(-Start with the Basics: You know how they tell you never to create your dream game on your first go, because you'll be disappointed that you don't have the skill to finish it and just give up? Same applies to pixel art. Start with shapes, move up to figures, etc., before you tackle a large, animated environment piece.)
(-Practice: As with all art, it pays to set aside a time each day and practice. Even if you don't like it, it's better than doing nothing. Yanfly posted a video about common traps Indie Devs fall into, and he shared the story about the pottery students who were either graded on the quality one pot, or the quantity of pots they made. The group who made more pots ended up being more skilled. So don't worry about how to practice: just make stuff, and you're guaranteed to improve on your own.)
(That's all I've got. Hope it was helpful. Anyone more experienced want to take the lead from here?)