I like using the one minute bullet games on lichess.org to hone my skills and sharpen me up for the longer 5:3 games. However I've been finding myself getting more and more into them.
The problem is, I often lose to lower rated players because I'm running out of time. One of my key problems is slow mouse skills, and just poor preparation I guess. Anyway, it tends to get me raging, and the memes going!