Short term investing is sometimes fruitful but risky at the same time so I don't recommend playing with all of your money in short period. Rather invest like 50-60% money in long-term comparatively stable coins like EOS, BTC and play with rest of the money in shorter day-trading periods.
If you know what you're doing short term trading can be incredible profitable, that has never been up to question the problem with that style of trading is that is by far the most difficult, you need to watch the markets very attentively and the difference between getting profits and getting losses can be of a few seconds and I am not exaggerating, so many day traders despite their skill eventually give up on it and become long term traders just because it is easier.