Learn to use the Pen Tool
When I teach Adobe Photoshop and Adobe Illustrator to students they seem to have a difficult time learning how to use the Pen Tool. A few month back I saw a post on social media about a web game that someone came up with to teach / learn to use the pen tool. I quickly introduced it to my students and they loved it. Even today, I catch students playing the game. If you have you really should check it out!