If you made a decision stick to it. You can't predict the future. If it goes to $1k you'll be upset. If it crashes to $1, $10, $50, $100, you'll be upset you didn't get out when you felt you should. So just accept it and what will be will be.
+1 I cashed out enough to pay any debts I might have and my rent for the near future. The rest- I'm holding forever.
Same, cashed out enough to pay stuff off, and left the rest alone.