Masturbation and Pornography

Q: Is masturbation allowed in Islam or not? If no, why because according scientific research its a normal habit.

Q: I have heard that masturbation is sinful and haram in Islam. Is the ruling the same for women, since mostly all the answers are related to men? I feel bad and guilty after doing it and I have also heard that masturbation can cause psychological problems and mental illness such as weak memory.

Q:

1. Is seeing porn movies a sin?

2. Kindly confirm the degree/level of this sin in Sharia? And punishment on this?

3. How we refrain from this curse in this social media era?

Q: With the "permission" of the wife, can I see porn? Is it allowed in Islam?

Q: If someone is addicted to pornograpy and masturbation, how can he get rid of the addiction? What are the consquences? 

Q: Before my marriage I used to masturbate and I used to think about my mother in law having sex with me while masturbating. I used to think about taking out her bra and nikars. Is my nikaah valid or broken by just thinking about her. I didn't touch her with lust.

Q: If a unmarried person feel a high sex drive many times, although that person wish to get married but it doesn't make possible. Can that person try self movements to satisfy and please sex drive and feelings? What possibilities are available in islam in that case?

Q: Is it a major sin for a woman to masturbate? Could you please provide references from the Quran Sharif and Hadith for the satisfaction of my heart and mind? I have heard that it can cause weak memory and eyesight as well as other health problems.

Q:

1. I masturbate when I am very stressed. How can I stop this habit.

2. The clothes that I have on during masturbation, if nothing comes on it do I have to wash them?