I keep it simple: What's in stock?
It's an inventory of what's in stock. I put stuff on my first 4th that wasn't really "in stock." The 4th isn't about listing every little thing that has ever irritated me. If that was the case, I'd never finish it. It's about what's in stock. Right now. What bothers the hell out of me? What memories do I wince at? Do I daydream about revenge? With who and why? What do I avoid? What and who scares me? Who have I hopped into bed with? Who have I flirted with? Have I used my sexuality to get what I want, even if there was no physical contact?
Stuff like that.
I don't believe it should take months to finish this step. If one believes their life depends on writing this inventory--and if they are a real alcoholic, it does depend on it--it shouldn't take more than a few days, at most.