Hello student ,

First of all I will suggest you that you and only can judge yourself about your capability of cracking your any exams . If you thinks that whatever you studied in 10+2 is enough for you all you need is to solve multiple choice questions or previous year questions will be enough for you to crack the exams then you should not drop your one year because as you know it will take your 5 and half year to complete your under graduate course further if you want to go for post graduation preparation or any kind course like MD or MS there also you have to take one year leave for preparation so it will take a lot of time to complete your dream . So for now if you think then don't drop you one year and prepare yourself with 10+2 and work hard you can do it or if you think you can not do you need leave then it depends on you just check your ability and knowledge then go for it .

Hope you find this helpful .

Good luck !