It can be considered gambling sometimes when various situations take place:
Like when the value of a coin goes back down more than 1000% or even 10000% and you've bought in when it was sky high.
Only a few % of traders make some real money in trading due to their insider reach and many upcoming price targets already known to them (like spikes and crashes, yeah, they do know all this before it actually happens).
Others give signals - be it for Bitcoins or alts because when their luck starts favoring their signals (and mostly due to their subscribers actually buying in and pumping on their own without actually knowing why the value of that specific coin has grown so high), they ask for some handsome amount of Bitcoins to give you "PREMIUM" signals. I've found a very few groups who are actually worth it over Telegram.
When markets don't go bull side, it's time to look for futures where we can grow our money even if Bitcoin decreases in value. Try BitMex for that - it's called leveraged trading (like forex).