To measure whether an investment is worth doing, focus on:
Security, rate of return, and liquidity.
These three aspects are mutually restrained.
High security means low profitability, such as bank deposits.
High rate of return means poor liquidity, such as time deposits. Investments with high rates of return are generally less secure, such as stock trading.
If someone tells you that there is an investment that can protect your principal, and the rate of return is higher than the bank's time deposit rate, and you can withdraw at any time, stay away from him/her, because he/she is 100% a liar.
