!!MAC!!
If you still have trouble finding the folder:
1. Click on your Desktop
2. Instead of clicking on 'Finder' .. click 'Go'
3. Go down to 'Go to Folder'
4. Type: ~/Library
This will open the Library folder regardless if its Hidden or not.
Alternatively, you could also do this in 2 simple steps, by doing this:
1. Press 'Shift+Command+G'
2. Type: ~/Library