When I started my own business/website/blog, I sat down in front of my computer and started writing some HTML. I literally plowed through it. I had no idea how I would ultimately lay everything out, no "great vision", and what was coming out was ugly, and has since been completely redone. But had I not taken action, ANY action, I'd still been planning right now.
And now that the site is live, I'm insanely motivated to make it a life-changing experience for the people that use it.
Here's a plan of action I'd suggest for overcoming PD addiction:
1. Make it a 30-day challenge to read no PD material. No books, no forums, no nothing. You can resume reading on day 31. The point is to break the thought cycle you're trapped in, and replace it with actionable items and measurable output. You're addicted, so even logging in for "just half an hour" is likely to turn into a few hours.
2. Make a parallel 30-day challenge to pursue a goal. Any goal. Any. Goal. Whatsoever. It will probably not be your One True Goal in Life, and that's totally awesome. Just pursue anything you can. For a simple starter (borrowing the idea from FHWW) ask yourself "What do I hate most about the world?", and find one thing, anything, you can do, or start doing, in 30 days to improve it. The answer to that question for me was that "90% of people live at 10% of their potential", hence I started a site to help build a community around setting goals and achieving them.
3. As soon as you're done writing down that goal, do one thing that will bring you closer to achieving it right away. Building a website? Register the domain. Writing a book? Write a rough outline. Motivation truly does follow action.
4. Do at least one or two actions every single day thereafter, that bring you one step closer, no matter how small, to achieving that goal. And do them before any other tasks in your day (even before showering, if they're short enough.) If you don't have time in the morning, then do them right after you get home from work.
Have fun.