Outside of a few exceptions, we don't.

Like the issue of faith, atheists tend to believe that "worship" is a bad thing, and avoid doing it. It's part of being a skeptic.

Just because we believe we can accomplish things ourselves doesn't mean we worship ourselves. We don't consider ourselves gods. We're just us, who happen to be able to do things.

Theists accomplish things themselves too, but for some reason, credit some invisible undetectable non-manifesting entity for what they did, often with the help of a thousand years of scientific discovery.

This is one of a series of questions that seem to come from a "mental template" of a theistic mind. It starts with the notion that all people always worship something... so if it's not a god, then what? It seems to be a struggle to understand that atheists simply don't operate that way.