Help me make my mother walk again!

I think any kid on this world wants to see her or his mother walking by his/her side trough life. I can't answer questions like: Why you think your mother is worth the money? or something like that. I don't think these are questions to ask, but what I can say to that is this. In Romania for a teenager to make that amount of money legal is impossible. Also, my mother is single, my father died 5 years ago. After that all of her money that she had she invested that in my studies in my life. I am still in uni and also working with 2,4 euros/hour. Usually I don't call the mercy of other people, but i don't see a way of walking out of this.

Let's talk a little bit my mother:

She is 52 y.o. she raised me alone as she could. She left her parenting home when she was 17 because they were abusing her and after that she struggled herself trough life. She tried to help her parents when they were in need in spite of all they had done to her. From my perspective she is worth it.

Please help me, i will have my forever gratitude!!!