A) Make sure you have a steering wheel otherwise your gonna have trouble learning.
B) Practice offline first of all, I know it's tempting to just blast on Multiplayer, but if you take people out, you'll soon be banned from servers and a bad reputation.
C) The LFS forum is a good place to go to get even more tips, theres even a sub-forum dedicated to beginners.
Welcome to live for speed make sure the wheel is set up properly. after you get used to the cars, check out the CTRA servers for some great racing action. if you're into drifting, check out www.lfs-torque.net
Make sure to download the high resolution reflections, textures, and skies as well.
sure you can, but the game is alot more fun with a wheel. i reccomend using mouse to steer rather than he keyboard. check out lfs forums to see tips on how to set up the game properly for mouse or keyboard.