Giving up on breastfeeding.

... I'm so sad, but these 3 months have been so difficult for me. From not latching as an infant, overactive let down, nipple shields, milk protein intolerance, now I think soy is too, and breast refusal for the last 5 weeks during daylight hours. He nurses only at night otherwise he fights and screams like I'm killing him. And I quit dairy and soy at 6 weeks. At 8 weeks he was a happy camper and diapers looked normal. At 10 weeks I started eating soy again and for 2 weeks nothing changed but now his diapers are looking worse and worse again. And I'm just so so tired of pumping and feeding him a bottle when I'm out and about doing bookwork (I can take him to work with me) and now the thought of cutting out most foods again... and everytime I pump I'm getting less and less milk out

.. I wanted to breast feed till a year but it's so stressful watching what I eat and if I mess up once he suffers for days and just the WHOLE package has been so tiring and only reason I have lasted this long is cuz I'm stubborn and know it's best for him. I just feel so guilty and disappointed in myself.