WELCOME ABOARD!
You're in for many years of addiction. I'm sure others will immediately start telling you to get this mod or that, so I'll just say have fun with it as it is, and as soon as you feel ready start asking. We're full of friendly people who will do anything to help, including mailing you mods if you can't download them.
That's not all we're full of, but I'm too polite to go into that in public.