It is normal that at times we lose some momentum, we have to find our strength, what will drive us.
Only bipolar people can maintain a state of euphoria or sustained momentum for long periods of time, due to their condition, but they will eventually fall into the negative phase.

It reminds me of that story from Peter Pan, to be able to fly in the world of dreams, in the world of never-never: you have to find your happy moment and focus on it, with all your strength.

We need to be clear about, or discover our important thing, the most important thing in life. And that would be the force that would help us continue in pursuit of a goal.

Motivational books and talks are good, but they do not always take into account that in life it is normal to have moments when we do not have enough encouragement.