How can a person protect himself from fitnah with regard to his religious commitment?

Self-Discipline in Islam

Committing Oneself to Deeds to Discipline Oneself for Wrongdoing

Feeling Introverted and Withdrawn

The Faith in His Heart Has Wilted – What Should He Do?

Fighting Temptations on TV and the Internet

controlling Urges Through Fasting

Not Praying Causes Distress and Anxiety

Reconciling Between Striving for the Hereafter and for Worldly Purposes

Refraining From Doing Good Deeds for Fear of Showing Off