Help Me Educate Myself By Pursuing Courses In Big Data

I have a knack for technology and leveraging it for the social good. I want to develop my skills and knowledge in big data and data science so that I can use it to help the civil society organisation to better manage their stakeholders and beneficiaries. I am an IT graduate from Mumbai University, and a civil service aspirant since 2015. I have a deep interest in development sector and it's impact on the society and on the other hand I'm a curious learner of technology and be updated on the same. Being devoted to civil service preparation since 2015 I have invested/utilized my post graduation/masters finance and now it's a challenge to seek financial support from family as my father is the sole bread earner with 3 kids to raise. I want to develop my abilities and skills in big data so that I can use the same in development sector. Please help me get to that dream.