My screen is black in my watch won’t charge
My screen went black and I can’t get it back on after swimming
Apple Watch Series 2, watchOS 6
That's a very old watch. You likely damaged the watch at some point defeating the watch's water resistance. Wearing it swimming may have then caused water damage. Watches are not waterproof.
M1 Mac mini, macOS 12.4; Watch, series 5 GPS/cellular, watchOS 8.6; iPad Pro 2nd Gen, iPadOS 15.5; iPhone 12 Pro, iOS 15.5; TV 4th Gen, tvOS 15.5; HomePods, audioOS 15.5 and Airport Express w/ Airplay 2