Trying to find the right moment to write won't get the writing anywhere. Trying to find the right words to write won't either.
Trying in general doesn't really get one anywhere.
If you want to go somewhere with writing, with life, do move against that which proclaims "rightness." Challenge when inspired, take heed when called, and at any time, know that you can walk on past.
Road signs and guideposts can help outline a path, but good stories always begin with a trip in the woods.