How does one get the left side of this bottom bracket unscrewed so i can can install it, it just keeps spinning what am i Doing wrong

Amazon.com : Miche Primato Track Bottom Bracket 68 x 107 English : Bottom Bike Brackets And Accessories : Sports & Outdoors

Update: well the right side came off by itself , it says fit the pre-assembled cartridge in the bottom bracket cage, inserting it from the right side. so that means i need to get the left side of the bracket off ?

nevermind I banged it lightly with a hammer and the thing separated thanks!
https://www.bikeforums.net/bicycle-me...tallation.html

Huh? You installed the left side before the right, and now it won't unscrew? Sounds like you stripped the threads. You'll need to push it from the right side with a screwdriver handle or something while you keep spinning it until whatever is left of the threads decides to bite and come out of there. Don't know if Miche offers left BB sleeves on their own. You may have to just buy another completely new one - and read the instructions before installing this time.