I have the ability to overcome any obstacle

Overcoming sounds frontal, and most of it happens sideways. The blocked route gets solved by a call to somebody who knows somebody, by an application filed under a different category, by asking a question nobody had thought to ask.

The people who get past things aren't stronger at pushing. They're less attached to the route.

Whatever is currently immovable may be immovable only from the direction you have been approaching it. That's worth ten minutes with a piece of paper before it's worth another month of force.