Is this marriage worth saving?

Oh my gosh I feel like our marriage is dysfunctional... We argue a lot and we used to believe that we wanted children and now we don't think we do because well for one we don't even have sex! Anytime we try its him going soft or taking too long and me ending it with a hand job. I don't enjoy having sex with him its been like this for too long. Then his job is stressing him out and he is easily irritable, low patience.... He likes to micromanage and have things his way and can't handle it when I critique his way of doing things. 
I believe I want kids but now he says he doesn't know if he wants to have any. 
Is there really any hope for the relationship when it has been this way for the past three years?