Investment has a very big risk, if we choose the wrong project then we lose. Different from trading, if we are good at seeing the market and good predictions then we will win.
But all there are advantages and disadvantages of each
Trading is easy when market is in bullish mode, but in last 2 months alts get kicked in the butt pretty hard, and trading wasn't easy anymore. Crypto is unpredictable so that is why you have a good idea, invest in project you have good feelings on, and then be patient and HODL then a long time and you will be VERY happy.