F18 need advice on ongoing cyber harassment, deepfake images, and defamation

Hello. I am making this post as I need clear steps for an ongoing cyber harassment case that started back in october 2025 and is still ongoing, as latest act of defamation happened in late july 2026)
I have attached a summary of the harassment that i faced below
In oct 2025, AI-generated explicit images of me were created from public profile photos and spread without consent. A Discord user attempted blackmail demanding payment( which i did not comply to) and repeatedly made over 5 accounts where i had to block him on each. Later i was falsely accused of sending real nudes, these continued till early/mid july 2026 until later in july i was falsely accused of providing prostitution/cam services through two accounts on discord.
The fake images containing photos of someone else and false accusations regarding me being a prostitute are being distributed on Telegram groups which i have evidence of. The telegram group attached my social media along with photos of other women claiming its me.

I have screenshots, usernames, social links and every other evidence possible.
I was wondering what i can do about it, as i do not know who might be spreading all of this or the root cause as it started with making ai porn from public profile pictures( which i originally did not pay much mind to as generating ai porn is very accessible nowadays), to accusing and advertising me as a prostitute which falls under defamation. All of this happened without my consent or knowledge. please help me out with any advice as i would like to take legal action here in dhaka bangladesh.