Many students face a similar situation after 12th year/std. Seeking career guidance is good at this point of time. Please continue your attendance of the NEET coaching classes.
First let's assess what your passion and preferences are. Do you aim to become anything other than a doctor? A research scientist with the core being physics/mathematics/biology? You intend to become an Engineer or a Executive in a MNC? We need to know what your choices to advise you specifically.
Coming back to MBBS, most students have the concept that a doctor's life is 24/7, will always have to be treating patients or operating. Yes, but this is only part of the truth. You can tailor your career after completing MBBS based on your aptitude and plan of work life balance.
Having a MBBS degrees opens up so many avenues in healthcare sector
1.Clinician: Physician, Surgeon, Dermatologist,Radiologist etc ( majority ofthe time will be spent with patients)
2.Lab based work: Pathologist, Microbiologist ( your interaction with patient is very less)
3. Runing a hospital: you can do your MBA in Hospital Administration from a reputed center and join any of the corporate or Government sectors. Often doctors are employed as CMS (chief of medical services), Gm(General manager of the hospital etc)
4.Becoming an expert in a niche field: Forensic Physcologist, Industrial Helath advisor, Genetics expert.
So, there are so many ways to chart your career. It would need commitment, patienence and time for graudation, post graduation etc. It also opens up doors to USA,UK,Australia and Middle East based on your qualification and job needs. Abroad, the work life balance is good and even job share or partime work is also feasible ( most women doctors choose this abroad to have a career and meet the family needs).
Nothing comes easy, competition is tough, you have to be focussed, plan and move on. I would suggest keep your options open.I say this because many cadidates underestimate their aptitude and ability to crack entrance exams.
If I were in your position, I would prepare whole heartedly for the NEET, write the exams and then re-visit the career decision. If you qualify, then very good move on with your career of MBBS and further studies. If you don't qualify, all is not lost, you can apply for B.Sc based on your core subjects and then consider the options once you have a basic bachelor's degree.
I would also suggest that you get in touch with a relative or a family doctor to spend a week in one of the major hospitals as an observer to actually get a feel of the work life of a physician, surgeon, pathologist, hospital manger or Chief of medical services etc. This would give you a better insight.