When I say that we struggle to be what we already are, maybe it would help to take this down to a basic example. Animals foraging for food. This is not an imperative to have food. It is an imperative to action. It is the struggle to acquire food. That feeling of wanting is a part of the already doing.
This does not assuage the physical hunger that might also be a significant factor, but that is not the source of what we feel. Craving, desire, discontent.. these are not the feelings of not having. These are the feelings our minds generate, as part of what we are. In many instances not so easily satiated as mere hunger. We can go through our entire lives craving and discontent. It isn't really about what we don't have, but a process of the mind. Part of what makes us human. Alive.. but it's also a mirage.
You might say that life is about the journey, not the destination. Or that it's important to do things for their own sake, not for some eventual outcome. These are variations on the same principle, but one that that can be taken into all the workings of consciousness, how all the machinery turns, every moment we're awake, and when we're dreaming. When we want to upend our entire lives, or when we just want to do nothing.
Each step we take, we take because taking that step is what we are, It isn't about where the steps take us, or where we're trying to go. It's the myriad of circumstances that impel us to take each step. By all means, keep walking. Or don't. You'll do whatever you're going to do. Be mindful of the process therein.