float-chops

Hi guys, I’ve been having issues in attacking floaty balls or floaty chops. I keep putting it off the end of the table. When I try to close my racket angle and go forward with it, it goes into the net. I don’t understand on what’s happening here as I’m giving away points and I’m losing so many matches because of it. I’m so used to lifting heavy backspin that I can’t understand on how to deal with the opposite of heavy backspin. Please help me in this issue. 
Thanks