CS,
Don't give up, but get yourself professional assistance in form of a medical lawyer experienced in dealing with the CAA. Meanwhile, get started on another career path, and be assured that being an airline pilot is not the most glorious way of having a life. There are other ways! If you succeed in regaining your medical, re-doing the ATP exams will be the least of your efforts.
On a side-note, why did you chose to have ''crazy'' in your PPrune name?