Well that's the major way of earning in the crypto field..but sincerely things are not the same anymore, its really hard to earn monies . You could also try Mining, faucets and some airdrops too with no assurance from me due to the current situation we find ourselves in.
for mining, I don't think it's recommended because it requires a lot of capital, not to mention paying for electricity, and it must be exactly what coins will be mining to get profits every day, maybe you can look for other alternatives such as creating a website, faucet, airdrop and making youtube