@JoscelynTransient Reward before task releases dopamine, allowing you to then work. This is generally opposite from NTs who usually need the reward after the task. Start with small tasks to boost reward on the new focus, and then once hyperfocus shifts, then the larger or more difficult things can be tackled.
But I say that as someone who just finally had to start ADHD meds recently because these tricks weren't working to overcome my executive dysfunction anymore. So ymmv.