Husband blues

My husband is stressed because of work and has low self-esteem from that and from our 3 week old being difficult for him to soothe. I ask him how he's doing, I let him get 8 hours of sleep, and I try to take as much mental load off him as I can, but I still feel like it isn't enough to help him. Any thoughts on how to help him? Or how to help me feel less resentful?