Gambling,Forex and Crypto Trading. I think they are same and you just predict where did you pick it will give you profit if you luck and if it fail, they will make you loss some assets.
They are different forms by which people make money online except gambling that is both offline and online . Gambling is just a guess work you do for pleasure while making profit or losses .
Forex encompasses of crypto , Fiat , oil, gold, sugar , Facebook shares, Amazon shares,etc which are traded online from Sunday to Friday only online. Is the biggest platform that's comprises of institutions traders like traditional bank and central banks of every nations, investors, individual.
While crypto is new digital currency that is trade with bitcoin and altcoin some few Fiat like USD, GBP . It is trade everyday including weekends.
the crypto and forex trading are not fun but hard work making decision with regards to trend of financial asset or other forms of asset that makes use of Fundamental and technical analysis.