Hello ! Welcome to deviant art! I'm Truffle! I see you have figured out faving , submitting deviations and making icons, that's good! If you need help figuring out other cool stuff there is a faq here
help.deviantart.com/ or you can ask me ! (I'm part of the official welcoming committee so I don't mind! )
I would also say it's good to check out the forums
forum.deviantart.com/ or chatrooms
chat.deviantart.com/ to get to know some people and maybe check out some groups?
groups.deviantart.com/ groups are fun because you can join them to connect with people with like interest!
hope you enjoy your time here~