I am honestly getting so frustrated with breastfeeding.. there is one boob she cant latch on because…

I am honestly getting so frustrated with breastfeeding.. there is one boob she cant latch on because my nipple always stays inside.. i just spent almost an hour of stimulating so she can latch on and she couldnt cuz wheb she does, the second she takes a break it goes back inside and i have to go thru the whole process again.. and i also have to pump before feeding her so she doesnt choke her life out because my flow is too much for her.. i wish i could just pump and give it to her with a bottle but she refuses any kind of bottles.. so i have a very sore nipple (because i only feed her on one side now) 5L of milk in my freezer from pumping before feeding her that she wont drink and lots of frustration for not sleeping 😒