Make a lot of Istighfaar in your life.
Be very regular in making Istighfaar as much as you can, because it is a great means of relieving distress & makes way out of every sadness.
And this can be supported by verse 105—106 of Surah An-Nisa. Allah (SWT) says:
Surely, We have sent down to you (O Muhammad SAW) the Book (this Quran) in truth that you might judge between men by that which Allah
(An-Nisa, verse 105), and Seek for Allah's forgiveness.. (106).
This is an excellent deduction encouraging us to seek Allah's forgiveness even when we want to pass Judgement.