Welcome Aria!
I have found that FeralHeart has to be one of the best places to find friends, most everyone is extremely helpful and not to mention friendly. When you enter the game, you do feel lost and rather overwhelmed by the size of the place, but it will all seem clear once you make a couple of friends who are nice enough to show you around the world of FeralHeart.
Joining groups is pretty easy too, all you need to do is find a group of roleplayers who you like the sound of, ask to join and they should send you an invite (the three paws will glow). Just accept the invite, go on group chat and let the fun begin.
Anyway, if you need any help, just scoot over to the help section and post your question(s), you should get some help pretty quickly.