Hello there and welcome to Deviantart! I see you have already started to post some works, that's awesome!
I would totally suggest starting by following some people who's works inspire you or make you happy. And personally, I would say check out Groups! There are some really good ones in all kinds of different categories that I'm sure you will find somewhere you will love to join!
If you have any questions, feel free to message me, and I will try to answer as much as I can!