My first thought

No one will ever want YOU to succeed. Only YOU can really want YOU to succeed, so don' listen to others say: "Oh, you can't do that", "Are you sure you want to take that risk?"... They see the possibility of you getting what they want, but don't have the guts to take it. Unless it's a very good friend or family (and even then listen to YOUR intuition), don't take negative advice from people.

JUST DO IT!