Take funagreek, blessed thistle and pump a ton. Every few hours to keep your supply up. Also, you can work on the latching problems.Its not too late. Call the hospital and ask for a feeding syringe because babies prefer bottles over the breast. I did syringe feeding for a while and it worked SO MUCH better to help my son get latching. My hospital was certified"baby friendly" so they did a ton of great things to help me.
She is probably used to the bottle because its faster and easier. I would switch to a breastflow bottle when you absolutely NEED to use one and pump until you feel your let down before latching. Call an LC and keep working at it. Exclusively pumping is great and good for the baby but it's hard! It would be great if you could get em to latch! It would make life a lot easier for you.
Milk supply info:
Also, try taking a luke warm bath and latching your little one in there when you can. It simulates the womb and can bring back their latching reflux like they are a new born all over again. It worked for me!
I had to pump for 3 months so please don't give up. Its hard but well worth it. Babies are trying to learn as much as you are! I hope this information helps!