Status/display help

[Zeo Writer]

Hello I'm new to Twine and my teacher assigned us to create a game using Twine. I'm having a hard time figuring out the status stuff. I want to create a "Sanity" meter and have it be displayed. Basically as you venture further and further in the game, your sanity goes up +1 or +2. I was wondering if anyone could link me information need to do that or possibly post here how to do that. I'm using Twine 2.0.4.

Thank you,

Michael