Because there is no higher education in my home.

Good luck with that then.
Unless you have incredibly good grades the chances of getting a full scholarship are extremely slim.

What exactly do you want to know?

Have you tried for a full scholarship? Do you have the grades to be considered for a scholarship? Have you checked into getting a student loan?

What have you done at this point to realize your dream?

This link is a database of schools and scholarships for students from developing countries:

Scholars4dev

You will have to do a little bit of research but I think this website is a great launching point and, if you are serious and ambitious, you will be able to find the resources to get you on the way to realizing your dream. There is an entire page of scholarships for people from Africa to study in Australia, UK, and USA. Best of luck!