Good. you got out there and made mistakes. Now you can learn from them and you wont ever be that bad henceforth, hereunto. I made a total ass out of my self the first few programming interviews I went to. First one, recruiter called me (woke me up at ~10am) and I thought I'd show "initiative", I said "sure Ill be there in 2 hours". Went totally unprepared, didn't even bring a copy of my resume. They even lectured me about improving my interview skills.
Second one, I made the mistake of asking my potential coworker "what college he went to", thinking anyone in an engineering profession went to college. The manager interjected that he was 'self taught', this wasn't a total faux-pas on my part, but it created an awkward moment where I didnt really know what to say. I further erased any possibility of getting the job by getting too relaxed/comfortable and blurted out that I'm really groggy in the morning (cringe). I learned quickly, eventually got good at interviews, and ultimately got a job at bloomberg, which is fairly difficult to get past their interiew process.
So dont take it out on your neck, pick yourself back up and make a list of things you can take away from your experience. you have no other direction to go than up.