I don't know if I made the right decision or not

 I'm 20 right now. I had a good hold of studies including maths when I was in school till 10th. My parents wanted me to go for state Public service commission as I was good at studying. So in 12th I choose humanities/arts as my subject as this could help me with social studies which are important subjects in govt exams.

Now when I'm in college doing BA for graduation, i doubt and regret my choice. Public service exams are not easy. A person has to pass prelims, mains and an interview for getting a post. Now that I have choosen my subject as humanities in school there are just a few or almost no options left for me for my career. I get anxious and very worried about the choices I made about my studies.

The situation at my home isn't very well. I have families issues, one of my family member is really sick and I have to take care him/her. I don't understand what I'll do if I don't pass the exam. I don't see any other option with a good earning.

I have this wish of going into private sector but with a non math/ non tech background I have no chance there.

I really don't know what to do now.

Thanks for reading about my confusion and tensions in my life!❣️