Hi there! Before you wildly join any factions, I suggest you to play around as indie player and get in touch with the rules of the server and the laws of the factions. Have fun on the server, though, and don't let yourself drag into ooRP hatred/circlejerks!
Welcome to Discovery! Someone will post below me giving you useful information and links. I wouldn't even know where to start tbh. Try to find something that you like and work hard on it. Remember to RP. 23s!