Trading and holding, buying etc are the key word in marketscap.when altcoins price is slow step price then appropriate to buying and holding, when price is pumping then suitable to trading.
must be smart in seeing the situation to be able to get the price and also we do not need to keep it. now there are many ways to be able to trade including what you say
Do not forget emotional control, and this aspect is very important.
Many people underestimate this, but this is very important and affect your trade.
Patience, Carelessness and Greedy are part of the trade that must be controlled.