Go to Settings
Continue to General
Scroll down until you see "Keyboard"
Select "Add Shortcut" or "Shortcuts"
Type a phrase you would like. Something that you find yourself typing a lot. Example: (Phrase: firstname.lastname@example.org) Shortcut: myemail).
One thing to remember, shortcuts must be all one word. No spacings. Enjoy.
The creator of this guide has not included tools