There's free money on the net but just that to get the free money, you'll have to exchange something for it. There's free money in giveaways, airdrop and the rest of the free means to get some small bucks but that shouldn't be your focus because that's not the best way to make money in the industry. The advice of not putting all your eggs in one basket should be taken serious. Investing all your money in Bitcoin only isn't a good advice, you have to diversify and this should be done in various financial markets. We have Forex, Crypto, stocks and various other market that can be taken advantage of.