Don’t feel guilty about trivial matters. You probably feel guilty because of social pressure. Pressure that started at an early age and has been reinforced many times over the years by elders, peers, the media, and the stories you tell yourself.
You didn’t mow the lawn this week? Who cares? You’re wearing the same shirt you wore yesterday? Who cares?
We sometimes feel guilty over the dumbest things.
P.S. [At the same time, don’t make excuses for your big failures. Especially failures that involve hurting people in a significant way. Acknowledge the mistake and commit to doing better.]