I teach people certain habits to use in their work. The benefits are often a bit delayed. This leads them to wonder when they will benefit and to doubt whether they're doing it right.

Let me offer this observation: you probably care less about doing it right than you care about whether to keep trying.

Is that so? Maybe yes, maybe no.

Either way, I encourage you to clarify this in your mind, because different strategies help in each of those two mind states.

@jbrains I think one of the difficulty things is that it's not about "something done right" but it's about "becoming in the process of doing". The mindset shift is fairly profound, and it can be disheartening when you realize that by former principle, there's no payoff; to define a payoff, it has to be defined in terms of the new mindset, and that's hard to integrate when you're in the old mindset.
@Trevoke Indeed, and so perhaps it helps to transform a doubt that requires someone else's judgment ("Am I doing this correctly?") and replacing it with a doubt that requires only your judgment ("Do I want to keep trying to do this?").
@jbrains Ooh, I don't think I had quite considered that aspect, but that gives me a lot to consider, thanks!