As being ADHD, what kind of financial help for college tuition I can get ?

Probably the same as anyone else. Maybe there are private scholarships out there for people with ADHD, but I'm not aware of any grants or anything like that targeted at anyone with it.

you mite want to read this article, it reinforces pinkpanther's point,
http://add.about.com/cs/adhdincollege/a/scholarships.htm