How can one strengthen faith, avoid hypocrisy of the heart, face calamities, and control anger without compromising rights?

Hypocrisy is a dangerous disease that must be guarded against. As for acquiring the strength of faith to face calamities, it is achieved through several matters:

1. Obeying Allah and His Messenger by fulfilling commands and avoiding prohibitions. 2. Knowing that destinies are in the hand of Allah, and that His will follows His wisdom and knowledge, as Allah the Almighty said: "And you do not will except that Allah wills. Indeed, Allah is ever Knowing and Wise." 3. Knowing that what has befallen you was not to miss you, and what has missed you was not to befall you, for nothing befalls you except what Allah has decreed. 4. Patience and knowing its reward. Allah the Almighty said: "Indeed, the patient will be given their reward without account," and "And give good tidings to the patient."

To address anger and nervousness, one can refer to the fatwas related to that.