Welcome to the posting side of things Dame. Most of us were at the point you are at right now - where drinking simply doesn't work anymore/causes more bad than good. So we understand what you are going through and that it's not very pleasant at all.
Were you following any type of formal recovery plan ( meetings, therapy, rehab, etc ) after deciding to quit? There's a whole lot more to sobriety than just not drinking alcohol.
Regarding the day counting ( or not ) that's completely up to you. Some folks start counting from the day they had their last drink of any amount, others don't count at all.