You could try this instead: Buy and sell on multiple exchanges; then, when you see those moments of indecision in the market, buy more of the cryptocurrency on the exchange with the lowest price, while simultaneously selling some on the exchange with the highest price. That way, your risk is mitigated: if the price rises, you’ve made money, and if it drops, you can buy back in at the lower price.
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.