Hello, I hope you are doing well

I will suggest you to rather work on your physics than quit B. Tech. Quitting is never a good option. But, If you have made your mind to leave B. Tech and want to pursue something else, you should go for it because it is never too late to start something new.

However you haven't told anything about where your interest lies and what subjects you are good at, since you are from science stream you could try doing B. Sc and then prepare for UPSC or other civil and government services. You can also prepare for CAT and pursue MBA, if you are interested in having your own business.

Hope this helps.