If you are a risk taker and love volatility then crypto is for you but if you want a less risky environment, you can do forex though higher leverage and margins can give you massive losses in those two. These two markets are a bit different in nature. Forex markets impact on news but you can be a successful forex trader only by using different indicator setups. In crypto basic indicator is useful but you need to keep in mind a lot of different things when taking your entry. A news event can prove your whole set up wrong. So it will be wise to use google to gather more information about these two sectors. I can add more points in my comments because i traded in both market but I want you to work on it so that you can value your efforts properly.
I would say it all depends on how you are dealing with forex and with crypto as well. A spot trading at crypto with just bitcoin/usdt pair would be a lot less riskier than some forex where you deal with Dollar/Yen partly with x150 leverage, which does exists.
That doesn't mean that we are not going to end up with anything that would be riskier at forex, you can also do the opposite as well, there are literally btc/doge parity for leverage as well, something high there with just usd/eur parity with low leverage could definitely make the crypto related part a lot riskier. So all in all, there isn't really anything that is guarnateed to be riskier in one side or the other, there are differences in the end for sure.