I want to stop breastfeeding. UPDATED

Hey guys I am a mom of 2. A 3 year old and a 4 month old. I didn’t get to breastfeed my son due to him being in the nicu but I really wanted to try this time. It was going great but recently I’m really struggling mentally. I also feel like possibly she’s not getting enough which is why she is so fussy. I feel like a awful mother saying this but I’m just not enjoying breastfeeding. She refuses any kind of bottle but I just can’t do this anymore. Of course I’m going to continue breastfeeding for now, but I’m in desperate need of help. I don’t know what to do. But I feel like my mental health is in shambles right now. I really need time to myself to work on my mental health and I don’t even have time to do that since she won’t take a bottle. I want to be able to enjoy her being little and enjoy my time with her but I just really need that break.

*********UPDATE*******

I have no issue giving her formula my son was formula feed from 3 months on. My issue is she will not take a bottle. I’ve tried my husbands tried, grandparents etc. I’ve tried at least 10 different bottle, different flows. Warming up the bottle nipple. Nothing works, so now it’s just worse because it’s like I don’t even have a choice to stop or not. I feel Like I have no more options. She has to eat and breastfeeding is the only way she will.