Please seek help if you are depressed or suicidal but for heaven sake be cautious about going to an er - all too often they are staffed by overworked underqualified morons who may push you over the edge fast instaed of helping you in anyway.
See your local dr - or a counsellor - someone who knows you, is preferably trained or who will at least refer you to someone who is trained & even then be careful, too many so-called professionals don't listen, don't take time & do soooo much harm.