Do you regret it ?
or do you believe BTC will create a new ATH ?
I wish i can go back when the times my coins already reached thier high price , i already have big profit by then. And because i want to get bigger and bigger profit i decided to hodl them which is my biggest mistake.
If you believe in the future and the coin that you are holding you will still have a good chance to make money from such coins as this will still grow much better in coming time and will surpass even 2017 high which took place when it has crossed 18k levels. Hold it for future and you will get much better price than 2017.