Yes, it can be noisy to keep chickens. I'm sorry you're having a tough time with their noisiness and I can definitely relate. What breed do you have? I can't tell if you need to vent or if you want advice, and either way is totally cool with me. I gotta vent about my dogs sometimes. But if it's advice you need, try changing things up for them. I love to see the chickens check out a new treat or a fresh bucket of sand.
The noise you're describing I'm imagining is that uneasy, loud clucking sound they make. Mine do that when they want me to feed them, let them out, or are bored. That's when I know it's time to hang some apples, give them a pumpkin or an ear of corn, switch up their run arrangement, or give them some sand in a Rubbermaid tote for dust baths. When I do that they keep themselves busy and quiet for a while. Oh! Don't use string to hang the apples.they can swallow the string and die. I use a length of small guage chain I bought at the hardware store.
Chickens may seem simple but they still like to be entertained.

I compare that noise to a tween whining "Mooooom, I'm bored! There's nothing to doooo..." While they sit in a room full of toys.
some breeds are super chatty no matter what you try, so like I said I totally get where you're coming from. I had some white faced black Spanish chickens in my little suburban mini farm. Hoo boy. I ended up trading them to my family that lives in the country for hatching eggs. They laid big, beautiful off-white eggs but they were the loudest chickens I have ever. Met. Ever. I called one of them Goose (always clucking like a honking goose) and the other Olive Oyl (had a nasally voice) after Popeye's girlfriend. Their replacements were much quieter barnyard mutts.
As for the vermin, it comes with the territory of chicken keeping unfortunately. I keep their feed in a big tote to keep the feed clean. but my chickens spill, the kids and I drop feed as we walk to the coop... Plus the sound and smell of edible prey animals draws in hungry animals. Best you can do is keep things secure. Good luck with your chickens, I'm glad you don't want to give up on them and I totally understand the rougher parts of chicken keeping.