Apple hides your Library folder because they don't want you accidentally messing it up. When you have to get into it, use the Option key and the Go menu.
How to access your Mac’s Library folder
Add text labels to the Mac’s toolbars so you know what the buttons are for
Add text labels to toolbar buttons, making them easier to identify & easier to click on (because they're bigger). Works in Finder, Preview, Mail, and more.
Essential Mac Keyboard Shortcuts: go to the Desktop with ⌘-Shift-D
Quickly go to the Desktop folder with Command-Shift-D. It's fast, and it works both in Finder windows and in Open... and Save... dialog boxes.
Find more stuff in the Mac’s Recent Items menu
Increase the number of "Recent Items" that your Mac tracks. It's as easy as 1-2-3. Set it once and forget it.
How to find stuff on the Mac’s Desktop
Quickly find items on your desktop (or in any Finder window) by typing the first letter of the item. You don't have to search. Just type.