earlier this year I tried to hold some coins and tokens but saw the market and the exchange getting downhill, what is the best move to sell it or hold it?
Sale in panic - the worst that you could make after market crash. It is better not to do practically nothing. Absolutely anything.
If you hold now, there is a good chance that in the long term you will see that your portfolio grows in the price. Long-term investment offers access to ampler opportunities.