I don't have so much knowledge about trading but I Think there's much risk on Forex than bitcoin or alt coin trading and Forex has more complicated characteristics . If there are many things we need to consider on bitcoin and alt coin trading there's much more with Forex I guess .
I would like to think that trading with forex is a lot more stressful then with bitcoin.
It would be more pressure involved for working with real money.
For me anyways.
Well bitcoin is real money too so I don't see the difference in that particular issue, but the problem with trading forex is you could do nice analysis about what you think it may happen but they can be disrupted very easily by a political crisis, economical crisis, or just random events like earthquakes.