[q] please help me get stock sense 6 back!!! topic

Hello, I have an htc one m8 from att, and I lost my stock sense 6 backup. All i want to do is get it back. I am not good when it comes to android rooting, so please go easy on the instructions. How do I get back the sense 6 rom, I am on cyanogenmod skin on top of lollipop, whenever I go into adb, it gives me a device not found, though I have the latest drivers, I apparently have to have s-off, so I found a file for firewater which I am not sure it works or not. Please somebody help, I am getting really tired of this big, metal brick!