Failed my drivers test

I know it in and of itself isn't really a big deal, but honestly I was going to take me passing the test as a small sign that maybe I'm good at something or doing something right, or that I'm on the right track and doing an okay job with my life. I'm really really disappointed in myself. I wished that I would pass before I took the test and I was actually fairly confident in myself. Now I will have to take it twice. I won't be better than anyone, and maybe that's all I'm destined to be-- average. This really breaks my heart. I haven't been suicidal in a while but with the start of the school year coming up I know it will all come flooding back.