If you are interested in Physics, you should certainly try fields like AstroPhysics, GeoPhysics. These are the upcoming fields of Physics. You can study B.Sc Physics and then pursue your Masters in any one of the specialisations. If you also havd Mathematics in your 12th as one of the subjects, then you can appear for JEE Mains and JEE Advanced and study in IISC, IIST, etc for placements in DRDO, ISRO for their space research opportunities. With a knowledge of Python programming, you have an advantage over your peers if you want to take up B.Tech and CSE as your branch to become a Programmer in the long run. Also CBSE released a list of courses that each stream has potential opportunities in and you can check that at: http://cbse.nic.in/newsite/attach/Compendium%20of%20Courses%20after%20+2.pdf