I think if you want to invest in crypto, You have to determine the amount that can be lost because the risk in the encryption is very high, if you want to get free crypto you should join any airdrops and bounties.
There are lots of ways how we could collect some coins/ tokens, that is nice that this market offers free ways like bounty/ drops which only require some me from us to get something in reward.
Bounty is a good way to get a lot of coins or tokens because there is a lot of bounty campaigns here in this forum and if you want to make sure that you are getting the good ones then you can just do some research to deepen your understanding about the coin and to the team and if they have airdrop then it is also a good one. It is a source of income without putting money but trust and effort only.