Answer
Respected Brother-in-Islam
Assalaamu Alaykum Wa Rahmatullaahi Wa Barakaatuhu
You should repent sincerely and seek forgiveness for your sin.
Tawbah (repenting) consists of three things: Firstly, one should immediately leave that sin which one was involved in. Secondly, one should be regretful and remorseful over what one did. Thirdly, one should make a firm intention never to go near that sin again.
It is also commendable to give some charity. May Allah Ta’ala grant you the Tawfeeq to repent sincerely and accept it, Aameen.
and Allah Ta’ala Knows Best
Mufti Ebrahim Desai