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?
Short term spikes are great times to sell if you are day trading. Example of that is if youve invested in a coin @0.01. and it went up to 0.1 sell them all and wait for the next crash. You are only profitabble here if you have a large some of those coins. Now if you will do this you must accept the fact that the value might go up still after a few days but if you are into the easy way do it this way. Or like me I set a deadline for my portfolio. I hold for a year and then sell it if its profitable then. If not then ill hold it for another year or only when there is a huge spike and then same thing buy again during market. Razhes.
since OP started holding, better hold till you win back your capital or till it reaches to the moon, you'll never know, maybe the moment you sell it the time it will pump, very unfortunate if ever, choose coins to hold know if those coins your holding will have some developments.