It shouldn't matter much if your are investing for a long term as your investment most likely will be profitable at the end putting into consideration the type of coins you invested in coins with utilities like Bitcoin, Ethereum and maybe BNB can always be profitable on the long run but those only been hyped are not to be held or you will regret it because they usually will get dumped after getting so hyped up so newbies rush into it with fomo meanwhile early investors are taking profit.
There are many coins that are yet to reach their previous all time highs and I do not think they will ever reach that price again because they have lost the momentum they had when they were just been hyped, with that in mind, know coins you should trade and that you should hold.