As previously mentioned, an understanding of the server rules and House laws (mostly in areas you frequent) will serve you well.
I'd also suggest that once you feel like you've settled in on the server and that you know the basics of the lore, joining an official faction you like the sound of is a good move. I did after about a month and a half here, and it helped me learn more than I would have on my own, not to mention some good group roleplay.
Hey there and welcome to Discovery! I hope, that you will enjoy your time here.
We have some assignments here.
If you want to earn some credits, feel the spirit of RP and take part in your first forum RP - feel free to take part in.