I quit

Selling right before another trillion+ comes into the market?

Ejoy the profit

5 years from now:

"oh man, i had x.xx Bitcoins before, why did i sell, sh*ttttttttt!!!"

as long as there is a profit, then its a good decision.

Well that's you decision. Also I also think prices will go down even more so you will be able to buy some bitcoins cheaper if you will feel if it's a good time to return in the market. But it's kinda hard to predict future of bitcoin. To many variables you can't control. So it behaves differently from the usual markets. So I understand your friend and you on this.

Why you didn't decide it few weeks ago, when the price was on pick or near it ?
The golden rule is to buy on the bottom and to sell when it is on the pick or near it.