You can't do anything now but to wait instead of buying at higher price. Don't worry about it as there will be the time that the price of bitcoin will go down eventually after the quick pump. What's even the reason why you have sold that 17 bitcoin? You've got $84,000 and that's barely a lot of money, if I were you I won't be gambling at the current price of bitcoin. I know there will be some proper correction maybe if it will be back at $5,000 go buy some.