PURPLE crying! PLEASE HELP!! 😭😭

So every night around 8pm my daughter starts screaming to the top of her lungs for about 3 hours until she finally goes to sleep and then wakes up every hour screaming until about 2am then she sleeps until about 5am screaming again until she completely stops screaming and just sleeps normal again and i am EXHAUSTED!! it’s been going on for about 2 weeks now and she’ll be 3months old next week. I know there is really nothing to stop it because its just apart of her development but mama is about to lose her mind! Do you guys have any tips on how to deal with this? Absolutely nothing i do calms her down anymore not even her favorite things like swaddling and white noise, but it seems to irritate her more. I try to nurse her but she refuses to latch on and just continues to scream. She’s only like this every single day at 8pm -5am the rest of the day is happy and healthy. But almost 7 hours of non stop crying everyday is about to make me go insane. She also likes walks but it’s so cold outside now. So any help would be appreciated!