You, too, will get old. Don't expect anyone else to support you. Maybe you have a trust fund. Maybe you'll have a wealthy spouse. Be careful whose advice you buy, but be patient with those who supply it.
Advice is a form of nostalgia.
A copy of Kurt Vonnegut Jr.'s purported MIT commencement address made heavy email rotation recently. And it was great. Trouble is, it wasn't Vonnegut's. Remember compliments you receive. Forget the insults.