Neighbours

I have an app on my phone with calming sounds, rain, waves crashing etc. I just sit it on my pillow on a timer so it goes off automatically after an hour and it helps.

As for your noisy neighbour, maybe try the nice way, approach her and explain to her you can hear all she does and its really messing with your sleep, If so wont comply, then report her and keep on doing so until something is done.