Congratulations. If you shorted at $627 or $628 and then covered after the drop. I would say well played. But if you keep the position open and this moves up, you will get burned.
There is ample opportunity to make $$ on both sides here. It will not go straight up. After a quick rise like the last two weeks, of course it bleeds off a little, as traders take profits and it consolidates before moving up to the next level.
In my opinion, there is more opportunity for the upside here. Why waste time and take the risk playing the short here?
You said you shorted at $450-$500 and predicted it would go to $350. That didn't happen. So how much $$ did you lose there? Why continue down that path? Too much risk vs reward shorting here, which is why so few short this.
Good luck!