Proverbs 21:21 He who follows righteousness and mercy finds life, righteousness, and honour.
What is the difference in your own feeling between when you do things right and when you do things wrong? In order to feel better we should aim to continue to do what is right because that will fill our spirits with good feelings.
This does not mean the end of all is through doing good but rather we will find we can draw closer to righteousness.
It is going to be easier to find God when we are amongst righteous people who are close to God than when we are amongst unrighteous people flooding their lives with the world instead of with God.