If you use the depression card, you might get a by from the CAA but it will go on your medical record.
The CAA might not even pull your medical. However a future employer might ask about such matters. If you own up to it you may be turned down, if you dont own up then you risk even bigger trouble.
In matters like this keep it simple. The simplest this is just to bite the bullet and start a new set of exams.
If you panic, you risk digging a bigger hole for yourself so calm down, straighten yourself out and then get back on with the task of passing the 14 exams and use this experience as life enhancing rather than making it into a total disaster and one you end up regretting for the rest of your life.
Redoing the exams is only going to be 12 months or so, it beats 40 years of regrets.