The only thing I would advise young actors to do is prepare for the amount of adversity that you're going to come in contact with by choosing to be an actor because before you actually "made it" or get the skills, people are all not going to take you seriously, and many people will try to discourage you from it. Don't take any of their advice. Do it, and do it and do it. Remember the compliments. Forget the insults.
