I pay attention to the recently used words and kind of mine from them. The luck part is choosing which one to work with, I guess.
For Instance, fishy was a recent answer, eliminate y and f and use "ish" or just "is" in a new start word, so I might do coils, hilts... like that. The recently used word isn't going to be repeated soon so I use them as eliminators, taking the more frequently used letters from it and scrambling them differently from the word I used..fishy has the s in the middle, I put it on the end. It just has to be different from the start word, which is a recent prior answer. I think I've hit on something that makes it more paying attention than luck. But it is my karma that I waste whatever luck I have on something that I'm not gambling on. I never win when I gamble.