They are two different things entirely even though they looks similar since they are both risky and there are chances of getting good profit and there are also chances of being at lost in both of them.
I will advice you to chose anyone among the two of you have understand the basic concepts of them all.
But I don’t know anything about forex, I only know Bitcoin and crypto trading, I can’t advice on forex, I will only advice you on crypto trading which is profitable if you take your time to do extensive research and learn proper before starting your trading journey.