It's always depends on your holdings mate, you can do long term holding if you have a coin that is having a good potential to create a greater value in the future like bitcoin and ethereum. And in day trading it's more risky because you have to choose an altcoin that you think will make a profit in a short period of time, but the problem is some altcoins are just good at the start, that's why you have to choose wisely to avoid of losing to much money and time as well.