I'm desperate for sleep, help

Dani
Someone please help me. I cannot get comfortable at night. All I want to do is sleep. I feel like my belly is in the way of everything. Every time I have to pee, I get spasms in my bladder and my baby loves to be right near my bladder. I wake up because I can hear myself breathing loudly. It's driving me insane. 
I have tried everything. Any moms have advice on how to sleep comfortably? I would be so appreciative as I'm exhausted. 
Thank you, desperate for sleep; first time mom.