Feeling like a failure

My baby is constantly up screaming and crying at night for hours at a time. He sleeps for an hour and wakes up to scream for 2. I know it isn’t my fault but I feel like I’m failing at being a mom. I don’t know what I’m doing so am I really the best person to take care of him? I don’t know why I feel this way. I’m doing the best I can and still all he does is scream and cry. The only support I have constantly around me is my husband and he’s hardly home. I don’t have any friends in this stupid town to help me. I don’t ask anyone I know for help due to the simple fact that last time I took them up on the offer to help me, nobody answered their phones... so I’m all alone in this, or at least that’s how this feels. The last 3 days I’ve gotten a total of about 6 hours of sleep. Im just tired of it all. Tired of feeling like I’m a failure, feeling like I’m never good enough, feeling like everyone is against me... tired of saying sorry for feeling this way. Maybe it’s my depression that’s talking at 1:23am, or maybe this is the truth coming out after the last 4 months... I’m just ready to be done with it all