As you mention the comfort zone, emotions are addictive, if we are accustomed to be brave, bitter, sad, we unconsciously seek to be in this state.

If we realize that what we need is to have well-being, but a well-being that is not ephemeral, it is the pleasure of being really healthy, healthy, of having a clear conscience, of being calm. And to live in this way we must cultivate with every daily action, which will bring excellent long-term benefits.

Our look in yesterday to improve, in today to act and in the morning to have the correct vision of what we want.

Thanks @chbartist