trading cryptocurrencies are much more profitable than anything in the world. none of the pairs in the Forex market has gone up 120% in the past year but bitcoin has.
none of the Forex market pairs can even go up 200-500% in 3 days but altcoins can.
it is all about experience. if you can find these things before hand and take advantage of the situation then you make profit if not you lose money.
in the end, if you make more profit with Forex then do that, if you make more with crypto currencies then trade them. it is based on the person who is trading and the experience they have in the said markets.
there is pros and cons about this , but if you do it carefully then bitcoin trading has more potential profit ,
you have limited times to trade on forex , while in crypto you have 24/7 non-stop ,
so as long as you have your own research and not trading blindly , crypto trading much more better.