What's up with my iPhone?

I know this will probably get zero answers but it would keep asking me to give mi iCloud password which I repeatedly did but than I'd get codes which never worked and now it just logged me out and even though I put in the right login info it just won't do anything it just verifys and I try over and over again all my contacts are gone my photos and note disappear than reappear it's weird. I went to the Apple Store and payed $80 for my battery to be replaced after 2 years I've got an iPhone 6. Along with that I don't think the geniuses can do anything about this and it's always like a 3-5 hour wait in the mall

No

Switch to samsung lmao

Honestly, get a new phone and throw that trash away, it sound sold and awful.