There is a point studying. It's to show you can finish something even if you don't get a job in that field. It shows commitment and responsibility.

It may not feel that way at this point. I too was in your situation and I switched majors and still not sure it was the right decision for me. But everyone is different.

Sorry you are feeling doubts. Perhaps you could get a part job time and/or volunteer in something that you are interested in doing, etc. Find a hobby and that might lead to something. This is all presuming you can do these things, I couldn't at the time.

Have you talked to a career counselor?