I'm a disappointment

I failed my damned finals. My life was going so well and then I was told to do a retest because I FAILED my finals. And tomorrow is my first retest and I've been anxious the entire day. And people around me still say I'm a good person, my mother still calls me a blessing but the reality is that I'm a failure. I try my best, to be good and succeed in life but I genuinely feel like it would be less stressful for me if I ended it like the disappointment I am.