Wa `alaykum as-Salamu wa Rahmatullahi wa Barakatuh.

 

Here is the definition of sexting in Wiki:

 

“Sexting is sending, receiving, or forwarding sexually explicit messages, photographs, or images, primarily between mobile phones, of oneself to others. It may also include the use of a computer or any digital device.”

 

There is no way a Muslim can engage in online chats involving such activities. Islam teaches modesty and chastity; hence any exposure or nudity is considered a grave sin. Such activities lead to adultery and fornication which are grave sins in Islam. Allah orders us “do not even go near fornication, for it is indeed an abomination and an evil way.” (Al-Israa’ 17: 32)

 

The Prophet (peace be upon him) said, “Do not expose yourself to anyone except your lawful spouse.” So, by sending your nude pictures or receiving nude photos of others, you are guilty of a grave sin. I advise you to repent. As for how to seek repentance you may refer to the answer linked below:

 

The Door of Repentance Is Wide Open

 

 

As for masturbation, it is allowed only in case of fear of falling into fornication.

 

On the tips as to how to repent of this sin, please refer to the answer linked below:

 

Can a Girl Repent from Masturbation?

 

Allah Almighty knows best.