Before starting a business, you must learn the ability of job prediction. These include risk management ability, imagination, communication ability, awareness and persistence. .
Otherwise, I often say; I should have known. . . . . .
Two conditions "premise" and "restriction" must be confirmed in advance.
Premise: it is a fixed item of the work.
Limitations: such as time, environment, technology, law and funds.
Starting a business depends on your major and what innovations you have. Then see if the funds are enough. If you can't innovate in that industry, then no amount of money is a waste of investment.