I'm sorry to say this, but your partner doesn't seem very supportive. This will likely have to be a conversation between you two before it gets worse. This thing is probably racing around in your head because your relationship is important. So it's all the more important to talk to your partner about these things.

It’s impossible to have perfect sleep every night. Maybe work towards your partner sound proofing the room so they don’t get woken up as easily. Maybe sleep in separate rooms. Many times you can find other solutions.

One of the biggest things that disturbs my sleep is... having someone else in the same bed. What do they do when you get up to piss in the middle of the night, or get a glass of water? There is an obvious solution - sleep in different rooms/beds.