I mean studying for exams in school, teachers have set revision plans for me but i can seem to stick to any of them and , when i take a text book to read nothing goes in to my head , it seems like im wasting my time
What helps me most when I have to study or read anything is to make it as active as possible. I wrote a long post on the subject under the "Coping in College" thread which is now a couple of pages back. Here's a link:
If this isn't what you need, say so, and we'll try to give you some more ideas!