Forex is where the rookies money goes to rich people, doesn't matter how much money you have or how great you think you are in the end whales decide on the market and it doesn't do what you think it should do, it does what the whales wants it to do. That way you are hang with all your money gone because of the margins and leverages and you say good bye to it. Stock market is a slower version and you can make money from it but do not wait for a insanely rich returns that will change your life all of a sudden. So that leaves us with crypto, you can buy crypto and either use it or keep it on your wallet, it will either make you rich in all of a sudden or it will eat up your investment and go down, no one would know.