That's it exactly -- there's no way for me to tell, right now, what I should do. Just like you were in your relationship, I'm putting in a bucketload of effort without knowing if it's doing any good or is even a reasonable approach.

Now to decide what to keep doing and what to suspend or give up on. I think I've already made one decision (drop one of the PTs). I'll want to drop a fwe other things as well.