I was charged with careless negligence instead of a dui but i refused a breathalyser so the dmv can make the suspension longer
Yes if you take the case to trial and the charges get dismissed.
I strongly suggest that you reach out to attorney from your state who deals with DMV issues. You may have options but every state is different.
Hire a qualified DUI/DWI attorney. Check out the National College for DUI Defense web site for a list of DUI/DWI lawyers in your area.