Not only is thinking it probably false in relation to whatever it is you’re working toward, it’s probably directly sabotaging your progress.
It’s easy to fall into the trap of thinking this way – stories of how every little bit helped someone in their endeavor are popular. You hear about candidates winning by a single vote, or people taking small, seemingly insignificant steps toward their goals which add up over time into something huge. People like to hear about these types of things.
The problem is it puts the focus on the wrong areas and leads people to make bad prioritization. Bad prioritization leads to failed goals.