If you decide to sell your altcoins, also consider the possible risks and costs associated with such transactions, including exchange fees, currency conversion fees, and potential loss of value due to price volatility. Before making an investment decision, it is best to consult a registered broker or financial advisor or seek advice from someone who has sufficient knowledge and experience in this area.
Right now it seems like an extremely bad idea to sell anything. What is the point of selling when all prices are at the bottom? You should sell when all prices are high. Investing in cryptocurrencies implies, among other things, that you have to survive the crypto winter and wait for the market to dawn. If you should have sold, it should have been at the beginning of this year, not at the end of it. The most profitable strategy here is just HODL. This is just my opinion.