Totally depends on what you do hold because there were actually those altcoins on which it is really that something worth to hold and since we dont know on what are the coins/tokens you've been holding then we cant be able to judge out because we do know that there are some low caps too and some meme coins too. On this kind of scenario then you can be able to tell to yourself that you have learned your lesson on which dropping to 60% from 180% on which thats really a huge impact but actually these kind of drops arent that shocking here on crypto space. This is why its really that important that on the time that you've seen your portfolio do reach up on a certain percentage when it comes to profit on which its right that you do set out some target profits and sell out so that whenever the market do make out some correction then you wont really be having any regrets since you have already sold out your position. If you do believe into the projects that you are holding then its up to you but be sure that you can handle up the volatility of the movement of the price because this is where you would be usually basing up into your decisions on which it could potentially be affected or be influenced by your emotions specially at the time that the market do make out some drops and this could potentially alter out your early decisions and thats why you should watch out.