A lot of this is hormonal and does ease up. I really weirded myself out with all kinds of foreign emotions after my son was born, and they lasted months. I would suggest if it is really bad that you get checked for postpartum depression; this is nothing to be ashamed and doesn't mean you're "crazy". It's a real issue that is totally legitimate and should be addressed IF it's something you're experiencing.
In my household, my husband and I are a team. You and your husband have BOTH sacrificed and planned to get you to where you're at in your career, and you're super blessed for that. I think that keeping a few things in mind will help you get through the day-to-day stuff, but you REALLY need to fight those feelings that everything you do is so "trivial" as you say. You are a team player in your family, and if you and your husband don't work as a team, your precious daughter will not have a stable, strong, loving family that she absolutely needs. You are providing a home and a living in a time when many people CANNOT find jobs and are living day to day in uncertainty....your daughter is blessed because she'll have a safe clean roof over her head and food, and the money for all the "stuff" that comes up in life (especially insurance). She will have a good strong female role model in you that will show her that she can go out, get an education, and do whatever she wants/needs to do. She is SO unbelievably blessed to have the love and TIME with her grandma, her father, AND her mother. WOW that is so rare. When you come home from work, you give your husband and your daughter love and attention, and she will not be missing out at all. This is your opportunity to spend some quiet time while you wind down feeding her, dancing and singing to her, reading to her, maybe giving her a bath and preparing her for bed while you talk to her about your day and asking about hers. It is still very possible for you to bond with her and spend your time with her when you get home, especially if dinner is already cooked and you don't have to worry about that. My husband shocked me when I was trying to explain to him about how I missed our son when I went to my part time job and he looked at me and said "Yes, I understand that very much-----how do you think I feel? Do you think I love him or miss him any less???" I hadn't thought about that----how a father is gone on one or two jobs a week and we don't think anything about it.....but it wouldn't be any "better" would it? Life insists that we provide for our families. As my husband explained, he doesn't want to get up and leave his wife and baby behind, he feels like he misses out sometimees, but he knows he must and he makes the most of it. I in return make sure that he doesn't have much to do (except maybe put the dishes away after dinner and our son is asleep) so he can spend concentrated time playing and having his "daddy time" when he comes home. I do all I can because I am grateful he's a man who WANTS daddy time and doesn't just kick his shoes off and veg in front of the tv. Your roles are reversed, but it can work very well for all if you just give it some time and try. And like I said, if things don't improve, get checked out for postpartum depression. I'll pray for you guys, but do understand that you guys are blessed.