it can be very rewarding and it can wipe you out completely.
Trading can result to gain or loss, but it can result to loss because the chance of it to result to loss is more than the chance to gain, only people gaining from trading are experienced traders that have suffered losses in the past, there is no how someone will just start and not have emotions and losses.
Secondly, you must have control over your emotions and have financial discipline.
This is the reason I like to just hold because there is much financial discipline for holders than traders, if someone start to trade, emotions will set, result to financial indiscipline and losses.