While the above answers may be correct grammatically, I would say that colloquially it would be fine to say your sentence in that form with the addition of 'also' in front of 'thousands of other students' instead of 'too' at the end. I've often heard lecturers say this sort of thing in talks.

Grammatically, it is completely correct. However, it is a bit confusing. To make it more clear, I would change the word order to, "It has helped not only me, but thousands of other students, too". Hope this helps!