That had to be expected

Contrary to popular belief, the price at higher levels becomes too unstable (read, mostly unsustainable) which leads to extreme volatility. And what we all witnessed recently is described by this assumption perfectly (you can even call it a theory). Regarding your question specifically, no one can answer it but you yourself

With that said, since you can always sell higher and buy lower, any price is good for selling and buying alike. If you need cash, you can sell using small increments (say, 1%), then you can buy back if the price tanks later. In fact, you can even make a living on trading the spread of your preference (10% spread should do just fine for starters)