I majored in Latin, thinking that teaching jobs would be easy to come by when, in fact, they weren't. That cost me around 6 years, with the dubious benefit that I was fluent in a dead language and that I nearly know the etymology of a fantastic number of words in English.
Not starting soon enough - but then again would have missed out on a helluva ride. Embraced, enjoyed, and lived each phase to the fullest. Feel a little behind now but if I didn't then I'd probably procrastinate, so it's a nice fire-under-my-ass. :) All in all despite not getting straight there, no regrets because the journey itself has been great!
Not sticking up for myself.<p>Don't wait for some theoretical FU money.<p>The people who have FU money, if they didn't inherit it, seem to have incorporated my first point into their lives. (Not that money is necessarily the outcome.) Also, sticking up for yourself does not equal being an ass to other people. For myself, treating other people nicely/respectfully is inherent to my own well being. And I actually do worse at it when I am <i>not</i> taking care of myself.<p>As for the "I should never have made the mistake" aspect. My intellect, and/or my intuition, could read the situation. But lack of will power, conditioning, health, or whatever -- something held me in place.