Cryptocurrency continue to be very risky including ICO. In 2018 many people lost their money on ICO. Not to lost money there are investments funds like https://defiscale.io/ that invest money in gambling and finance and offer a stable income to investors.
The best way to make a profit right now is by investing in a coin that is being pumped like dogecoin. You see Elon makes a tweet and the whole market gets crazy so just use the opportunity once he makes a tweet you can close your eyes and buy some doge and later once the market is hyper you can sell them and cash your coins. Don't ever hold your dogecoins though because we all know this meme coin is not going to bring value in the long term by any means.