Like many here, I'm also a procrastinator (and my wife is much worse). My strategy, somewhat similar to Mr. Gassler's, was honed over decades of heartache and failure and occasional successes:

- write down a plan

- break plan into very detailed micro-steps

- do at least one of the micro-steps. Feel a sense of accomplishment. Now the rest of the steps seem less formidable.

- accept that my brain is often foggy and slow, so give it a few hours or overnight to mull a plan. Don't beat myself up for not getting it done today (and possibly screw it up).

- exercise a lot (I love running and get a high from it, so it's not hard to incorporate)

- lately I've been using a mantra "Don't think about it, just do it!" It's how I got myself to the gym 5 days a week, back before the virus anyway.

- To force myself to read a book, I'll assign myself to read one page (or Kindle screen), knowing that usually I can get sucked in and read several pages.

- fantasize a world in which I have already accomplished something. Visualize it being done. Realize that I'm perfectly capable of doing it.

They sound like somewhat childish tricks, I suppose, but it's what works for me.