Keep it up! But be realistic... with a 10 3/4 month old to also care for, you have a LOT on your plate.
When I had my son, he had a really hard time latching on... I had pre-eclampsia and was super swollen causing my nipples to be sorta inverted. He had an awesome suck, just couldn't get a good latch. Plus, I have huge boobs and he had a tiny little mouth. Nipple shields worked wonders for us. The lactation lady at the hospital first gave them to me, then another lactation consultant the following day actually showed us how to use them properly (getting them wet helps keep them on). I have heard conflicting things about their use, but they definitely saved us. Our midwifery center lactation consultants also recommended their use in our case and I really trust them!
We only had to use them for about 5 weeks, tried at least once every day to get him to latch without them and one day it just clicked... he'd grown a bit and my swelling went down = great latch. I'm still breastfeeding (pumping during the day 'cause I work full time) 7 months later and SO glad I put in all the effort and hard work to get established. It's really an enormous committment you really have to work hard when there are issues but it's SO worth it.
Keep pumping so you don't lose your supply completely and work with her... be patient. Eat well, drink loads of water, take your vitamins... have lots of skin on skin time. Ultimately, the most important thing is she needs to eat and we all know breastmilk is best, so do everything you can - then you'll know you made the effort if things don't work out like you'd planned!
Good luck and we'll think good thoughts for you!