negative mood....extreme

as the day has gone on..my mood has gone downhill with it...i dont know why..ok i have some clues as to why..but im just ...im feeling stupid and selfish and lonley and lost and sad and just really trying not to cry from feeling so utterly useless and annoying...im currently waiting and praying for sleep before i get up and do something really stupid..just because my thinking is in overdive and my anxiety is up and im ovverthinking and trying to stop my head and not think but its not working and im upset i guess and i dont want to bring it up because its the same old issue..i need so much freaking reassurance and comfort and whatever and its not fair to expect it all the time ...and not getting it shouldnt make me feel so upset... i dont know...im just stupid...and selfish