Don't invest if your monthly income is under $30,000. Absolutely right. A few more points: 1. If you can't even make $30,000, you're incompetent. In the financial market, success is the product of countless sacrifices. With your skills, you'll just be a victim. 2. You don't have a financial advantage. I think people with less than $100,000 in savings aren't suitable for investing. Life demands money, and you won't be able to hold onto it when it fluctuates. 3. For non-insiders, playing with altcoins other than Bitcoin and Ethereum is tantamount to gambling, worse than playing slot machines.