New mum, exhausted and not coping

Edit: thank you everyone so much for your comments. Just reading these has helped boost my confidence and I plan to come back and re-read them whenever I start to doubt myself. You are all wonderful ❤

Hi all, I've been lurking on here for a little while now but my LO is only 13 days old. Obligatory on my mobile, sorry about formatting or spelling errors and rambling.

I've had my heart set on breastfeeding from the moment I found out I was pregnant. It made sense; the bonding, nutrition and cost effective etc. Well I'm 2 weeks in and I'm not coping with the lack of sleep and I dont think I really realised how much of an emotional drain it was going to be on my brain to have this tiny human fully reliant on me for feeding.

My husband is incredibly supportive and takes DD when shes just been fed a few times a day on the weekend or in the evening when hes hime to give me a break but I dont feel like its helping. The second she starts crying I'm wide awake (if I even managed to get to sleep at all in the first place). The last few nights the moment I hear her cry, I burst into tears.

I'm aware of the baby blues, and I have no idea if this is just part of it all but I'm struggling so much to keep up with it. My husband works from 7am-5pm Monday to Friday so I'm home by myself with DD during that time. When he is home I'm aware that he needs sleep too so I've been trying to cope on my own as much as I can to give him a break. He's struggling too as he has a son from a previous relationship that was formula fed from day 1 so he was able to help with feeds from the beginning.

I dont really know what I'm asking for here :( I guess maybe i just need somewhere to vent. I see all these happy mums on this sub with their gorgeous babies successfully breastfed and I feel like I'm failing my daughter for wanting to give up so soon.