I'm failing 😭

I'm a FTM and I feel like a complete failure. Failure. There, I said it. I breastfeed exclusively. There is nights where I just cry and cry and I know it doesn't help my baby, but I've gotten to a point where I can't stop the tears from falling. I try everything from feeding to swaddling and he still cries. I'm so overwhelmed and drained. I love my boy with all my heart but I just wish I wouldn't feel this way. And on top of that my fiancé tells me to "nap while he's napping" but that's almost impossible to do when the baby doesn't sleep. My heart breaks every time I hear him cry. I cry just looking into my sons eyes bc what I see is a failure of a mother. I'm supposed to be his rock, his champion. It's been 6 almost 7 weeks since I've given birth and I'm STILL staying with my mom. I know my fiancé wants to go home, but my mom is my rock through this all. I'm just trying to be the best at everything. I just want my son to be proud of me instead of being disappointed.