You could try this instead: You could try to avoid times where you know there’ll be relatively less liquidity in crypto — like nights and weekends — by closing out all of your positions every night and over the weekend. You might also consider maximizing the liquidity to which you have access by trading on a platform that allows you to access many different exchanges at once, rather than trading on only one or two specific exchanges.
Always pay attention to Bitcoin. Most altcoins (every cryptocurrency except Bitcoin) are pegged more closely to Bitcoin than Asian currencies were to the USD during the Asian Financial Crisis. If Bitcoin price pump drastically, altcoins price can go down as people try to exit altcoins to ride the BTC profits; inversely, if Bitcoin prices dump drastically, altcoin prices can go down, too, as people exit altcoins to exchange back into fiat. The best times for altcoin growth appear when Bitcoin shows organic growth or decline, or remains stagnant in price.