CBSE 12th

You can take admission in a college to pursue B.Sc, and appear for B.Pharm entrance exam next year.

Hey,
You can just find them on https://shiksha.com. You can compare the colleges and get all the details there.

You can do B.Sc. and or BA, they are good.

Did you gave IIT -JEE Mains for any other competitive Exam?

This is not possible to leave physics just after completing class 12th from PCM. I understand that physics is tough for many students and even I also don't like physics but without it you cannot get a good college.
You should score 85 marks in physics. You can appear for IIT JEE mains and advance. If you keep working hard, then you will definitely get good marks in both mains and advance.
All the best.

Some companies do give importance to 12th marks like Deloitte and but it's not for all the companies.

Of course, it's a great idea but it will be worth if you really have interest in fashion designing.
Best of luck.

As you have reached a particular point in career, you may know certain things. May be, you can come to a conclusion. On getting an idea, discuss with your parents, first. Then, seek advice from knowledgeable people. You know all fields are good, provided you work with a conviction.