The Prophet ﷺ advises us to be patient with whatever happens and Allāh ﷻ will reward us in Ākhirah, in shā’a Llāh. Shayṭān tells us to feel sorry for what we cannot change. When something bad happens say Al-ḥamdu liLlāh and when something good happens say Shukran liLlāh. A believer lives this life in preparation for the next.