Do we make our own decisions?

Our life path is determined by decisions we make everyday. Our decisions determine every single aspect of our lives: what college we enrolled to, what job we are doing, are we married or not... Even smaller things: where will we go on holiday, shall we buy red or green shirt... We may say that decisions are most important things we are doing every day. However, we never think about if we are doing that everyday thing right. And in most cases we are not...