Feeling Pathetic

I'm new here! I've been feeling so stupid and pathetic lately, as I hit my friends rental car and I got reprimanded at work. I've been trying to tell myself that humans make mistakes and that the situation isn't that bad, but I can't seem to shake the horrible thoughts in my head. I just feel so guilty and even more so because my friend isn't mad at me. They should be mad I hit their car...why aren't they mad? I have work again today. I'm nervous my boss will talk to me about yesterday. Every little thing is eating me up and I just feel so tired, that I can't do this anymore.