Good Character

Q: Can you please let me know the adab and sunnah of letters? For example, letter writing and receiving letters.

Q: Could you please give any advice how to stop lying?

Q: I would like to know if it is permissible to expose sins if you need help and advice and you are not proud of the sin you're exposing.

Q: If you get thoughts, urges or daydream about showing off your worship to other people so they will praise you but you don't act on the thoughts or urges, would you be still a sinful? Basically they are just thoughts, desires and urges of showing off in your heart but you don't physically show off.

If you get thoughts or daydream or images in your mind of shirk and kufr but never act on them physically, they are just in your mind, would you come out of Islam or become a disbeliever? 

Q: A certain Darul Uloom has said that it is permissible to make gheebat of an oppressor? Is this true?

Q: If one has made gheebat or slandered someone without their knowledge, is it necessary to tell them about it and seek their forgiveness or can one just ask forgiveness from Allah?

Q: I wanted to ask which sin is lesser of the two evils, exposing one's sin or lying? I am asking because if someone asks if you have comitted a sin, is it permissible to lie and say you haven't? Would that be better than exposing your sin? In a situation where you cannot avoid the question?

Q: Can death take place when you say Hasbiyallahu wa nimal wakeel in anger to someone?

Q: I feel very jealous of my near and close friends. When something bad happens to them, I feel satisfied. I always pray to Allah to give them more. How do I get rid of this jealousy?

Q: I told a lie to my mom that I passed my paper because she takes too much tension. Just to avoid her depression I told her that I passed and now she is offering 50 nafal of shukr... I regret telling a lie but I am afraid to tell her the truth. What should I do?