It's 1:30 AM and im thinking what stream I should take in 11th and my career. Help me out

I really need some career Guidance.

So I'm inclined more towards Commerce. I want to get a MBA from a top IIM and either work in a finance company or start my own business.

My parents are alright with that, but my mom still wants me to take Science for 11th and 12th so i can develop a so-called "Analytical Mind". She told me about the daughter of a family friend who took science in 11-12 and now is topping her class in College (It's a commerce degree but i forgor the name).

So science or commerce guys? I score good in Science (so far) but I know 10th is nothing compared to 11-12 PCM.

and pls tell me the process to graduate with a MBA if you know something about it