Breast milk

Use it for her. Breastmilk has a lot of great uses. Like you can add it to her food when she starts on purees. And it also helps with preventing colds during the cold seasons if im not mistaken. You'll just have to do a bit of research on it

Some women have an enzyme or something that makes defrosted milk taste an odd way. It happened to me with my first. What I did was I mixed fresh and frozen milks. He started drinking it - I did 50/50

You might have high lipase, it causes the milk to taste soapy after freezing/thawing. You just have to scald the milk before freezing to avoid it. This does slightly alter the immunologic benefits, but not enough to make a big difference. You can also try mixing 50/50 fresh and frozen. I've heard some people have success with an immediate ice bath directly after pumping and then deep freezing immediately.
I've had it with all my babies, thankfully they've all just been ok drinking it anyway, but it seems like it's about 50/50 on whether a baby will drink it or not.

Likely high lipase. Aside from mixing with fresh milk, you can try a couple drops of alcohol free vanilla flavoring to try and make it more appealing. That’s what we had to do for my daughter.

Any future milk that gets frozen make sure to freeze as soon as it’s pumped if you know it’s going to be frozen. The longer it sits in the fridge the stronger the weird taste and smell will be. People have also said you can scald it before freezing but I’ve found that’s just too much to worry about while also pumping and bagging and freezing and cleaning parts 😵‍💫

Mix it with a lil fresh milk like 1-2 ounces...use it as bath milk, make lotion, get jewelry made...