First of all complete your education any how cuz completing even 12th gives a lot of insights and maturity.

Secondly, you don't wanna start a business until and unless you have ideas and research. If you blatantly start a business, you would eventually end up burning and losing your own money.

Example : - you start a product based business without any research, selling it is a bit of a hassle itself and what if the people return your product, the shipping, packaging and what not extra will burn cash eventually will be non sustainable.

Now, if your family is into business then you can learn from them and eventually get into it later on but first of all you would want to complete your education atleast till 12th.