I came to Thailand to be a teacher for a year.

I came to Thailand to be a teacher for a year, six years later I now have a family that I would like to take back to West Africa, Nigeria.
Unfortunately, as a teacher I don't earn a lot of money and it is hard to save for big trips let alone a move to the West Africa, Nigeria.
We try to save money where and when we can, but it just doesn't seem to be enough. Any help will be greatly appreciated.