Does it ever get better ?

Any full time working moms? I’m a first time mom and full time working. It’s been about 4 months. I’m nothing but exhausted both mentally and physically. I’m on my feet the whole day. Constantly working since 4:30 am until 7:30 pm. I get about like maybe an hour break here and there to sit. That’s all. I come home work again-make dinner, prepare lunch for next day. I’m greatful to have a husband who supports me a lot. But, apart from him, we have no family to help out. It’s soo hard. My knee is paining and my eyes literally just shut down. Above all that, I leave home when my son’s sleeping. So, I don’t get to see him until evening which is so hurtful. I’m not able to spend time with him in the evening. Because, I come home around 5:30 and I start making food, dinner because I cannot sleep late and his bedtime is close. My husband can’t help because he go late and come late. I hate this life. No happiness or rest. I feel like why do we work. But, financially struggling. I have no idea how to make this better.