I think goals can be good providing they're genuinely your goals, and not the ideas of another infiltrating your consciousness. And I don't mean forget the past literally, I mean don't live there, don't compare it with the present, don't mourn that which is gone.
I have no goals and barely any ambition personally. My philosophy is there's nowhere to get to and nothing to achieve beyond trying to become a better person through mindfulness, and I believe the best way to mindfulness is by doing nothing - but maybe that's just my excuse for being lazy

, I'll let others be the judge of that.