@spotiche5- It sounds like your relative would enjoy working as a school counselor, social worker, or even a special needs teacher. She has the passion, now all she needs is the right college degree and career goals.
The first thing that your relative should do is talk to her guidance counselor. He or she will give her advice based on hands-on experience what it is like to work with children who have difficulties in school. The counselor will also have a good idea about the best colleges and programs that your relative can take to pursue her goals.
Once your relative chooses a college program, she will learn about the different careers that will allow her to work with kids to help them succeed in school. She will also be able to choose a clinical program in her senior year where she will gain hands-on experience about the field she has chosen.