The LRT is essentially 3 steps: 1) No pursuing 2) Get a life 3) Wait and watch
In regard to your W, it's more of things to NOT do than attempt to do. No letters, no phone calls, no begging, no pleading, no pointing out the happy memories or good times, no asking them to reconsider or try counseling - just leaving her be. Step 2 is the place where you can feel NOT helpless and take action - doing things for yourself, because you want to do them. The point of the LRT is even if it doesn't work, you've maintained your dignity, and you've built a new life for yourself without your W so that even if she doesn't "come back", you'll be OK. There were many times I was frustrated with all this because it felt like a lot "not doing" things rather than taking action, but you can take action as long as it's regarding yourself.
Me:30 H:29, no kids T:12, M:4 (when D was final) 12/13: "Don't think I want to be M anymore" 6/14: Separated (I move) 1/15: H filed for D 5/15: D final