Day trading is for trader who can't wait or don't have patience, and I'm do a day trading, about the profit long term trading can give your more profit but you should research first about the altcoin you want to trade if you choose a wrong altcoin not a profit you get but a big loss.
no , not always . you can't judge like that ,
day trader also could be about take a little risk for a little profit but continuously ,
it is minimize your loss too sometimes ,
as you will have a short period taget , and cut the loss rare happened.