[cletus]

Have you tried time boxing? Reading what you said, it may work for you.

The principle is simple: instead of trying to tell yourself "I'm going to focus on X until it's done", instead say "I'm going to work on X for Y minutes". You can experiment with what Y works for you. 20-30 minutes is a reasonable starting point.

During that time, remove potential distractions. No notifications, phone on silent, no distracting websites open (eg HN, reddit, whatever), no Discord, etc. Use a timer if that helps. I'd actually get a physical timer as this seems to be more tangible and removes the temptation of getting distracted by your phone.

After that time, give yourself 5 minutes to do whatever. HN, reddit, email, Twitter, it doesn't matter.

There's really no point in self-flagellation when it comes to distraction. Just try and work with it.