How to make clean quick selections - remove remaining "outline" of background
When using Quick Selection during the process of removing the background from an image, it will always leave a bit of the background after deleting the background, forming a sort of outline around the selection.
How do I clean up a quick selection so that it is clean, removing ALL of the background?
Below are two pictures showing what I mean - the top one shows my quick selection, and the bottom shows the result after removing the background. You can see that a slight "outline" is left from background of the original picture.
I apologize if this has been addressed a million times before, but I could not find a solution to my problem using the keywords I'm familiar with.
Thank you!

