How can anyone manage things which are most important for life simultaneously?

I am a school passed out student. I want to learn mathematics as I want to make a career out of it (because I love mathematics and want to pursue a higher research level degree). Although at the same time my family is in a financial crisis from over a decade now and I know that the upcoming years are going to be more horrific if money does not gets pumped in! So for that reason I am on a drop since I have passed out (ITS MORE THAN A YEAR NOW) and has been learning trading and stock markets. However, my family keeps pushing me to pursue a career so as to be risk free in future (even if they understand that I am doing these things for them they want me to do things that will make me stand upon my feet) and also their primary sentiment is to drop this idea of markets and all (normal Indian family's behavior). Now since last few days, I have been highly tensed and deeply worried about the carrier I made. I am confused whether to drop the stock market practice and start the entrance preparation or to take things simultaneously. But I dont know the ways by which I can tackle all these stuffs going in my mind!