Completely miserable in my marriage...

I feel like I'm only in my marriage to help pay bills even though he doesn't keep a job and barely help pay any... I have to hear attitudes if I fall short because I have to even out bills food and things for the kids... And he clearly does not care if I'm stressed trying to do it all.... We can't go on dates bc he doesn't have any money Valentine's day is coming up but what's the point of me caring... I haven't received anything in years.... I'm just tired and ready to give up I just want to be happy and I'm tired of trying to explain to him what he's doing wrong... I hate this marriage I really do