i know i don't deserve any help/advice, i been nothing but a pain in the *** here ... but some would really be appreciated plz?

i've just spent the last 2 days or so lying in bed ... no food, drink, bathing, no answering calls etc ... coz i just give up! i've got nothing left, screwed everything up, and who doesn't hate me by now probly just pities me, that's how i feel. so ... if i've hit this rock bottom every1 talks of ... where's the point in trying now, i've screwed everything???