Install the chrome extension so you can use Gmail™ in a calmer, more intentional way.
The extension adds a button to Gmail™ that lets you hide your emails whenever you want. While your emails are hidden, you can still use the top search bar to find specific emails or conversations, but emails and red alert badges won't appear. Since this is a browser extension, it only works if you use Gmail's™ web app.
See a problem? Please file any issues here.
They're all free, open source, and designed to help you get in the flow.
Looking for other helpful extensions? I use and recommend all of these.