Sadly when looking at the current market conditions, the price of dropping again and farther with $ 30k, early June when the price reaches $ 28k I am optimistic that the price will touch $ 30k before the 10th and now must be further away, of course it is a difficult but hold choice is the best solution rather than selling and loss.
If you've bought at $28k holding on is the way to go. Instead of selling at a low price.
But if you still have spare funds, you can buy at the current low price, it will give you more assets, hold until the price reaches above $30k and you are enough to make a profit.
The market suddenly crashes like today because of some bad news that happened and it is very influential.
At this time just hold on and wait for the good news to appear then the price will automatically rise.
Note that May and June are down months, and hopefully July or the end of June will see an increase in prices.