So,here you are, time to put that brush (plugin/swatch…) inside one of the file of your Adobe product and…Jeez Louise where is ” Applications”? No, fear I got you covered (happened to me a couple and I decided to write it down in a post and share it, so none of us will go nuts next time, we need to go to Application!)

First go to Finder
-then click to Go > Go to folder

-In the dialogue box, write down: ~/Library

then click GO

Or use the shortcut: Command+ Shift+ A

et voilà !