Please help me understand how this whole transition to milk, sippy cups, and solids works-I'm lost. Here's where we are right now:

*LO will be one in 2 weeks (just HOW?!). Until now, she has been drinking BM exclusively at school. I send 15 ounces a day generally, but the last few weeks, she has only been taking 10. She eats solids like a champ-3 meals and one snack, generally. She still nurses a lot at night, though (which I know is good, but...sigh). She is also MSPI.

*I have been trying to/am pretty much pump weaned. I had a huge stash that I am working through, and it will get me to her first birthday. I've been trying to mix it with different things-flax milk, coconut milk, fortified almond milk-but she hates it all and will not drink mixed milk. As a result, i decided to send 10 ounces of BM to school, along with her lunch. She usually takes a bottle right before she naps there, so I figured 2 naps = 2 bottles a day. She also gets water with meals.
*Today, they told me that the 10 ounces isn't enough, that she wanted more when she finished her second bottle. Should it be enough? If not, I'm in trouble, because I don't have enough stash for 15 ounces a day. When do we go off of that?

*We are also currently trying to transition her away from bottles. She is really good with a straw cup, and she has one at daycare. The thing is, though, it seems that her teachers (whom we love) are giving her sippy milk at mealtime and pouring it back into a bottle for naps. I don't know, maybe we jumped the gun on bottle weaning?

*One last complication is that we are working on re-introducing dairy. Thus far, she has been great with it, but we will know for sure on Monday, when we head to the GI. I've given her yogurt, which she loves, and a bit of cheese. I also bought goats milk today to see what she thought. She drank a bunch of it before pushing it away, but I think that is largely because she only wants to drink from the source when I'm around.

So, given all of that, here are my questions:

-should I be bottle weaning her at this point?
-how much breast milk does your 12 month old get?
-if the transition from pumped milk was rocky, how did you deal? How long until it got better?

Thank you for helping me figure this out!!