A man threatened me?

I am 18 years old now, but when I was underage and having some problems, I was meeting people on the internet and I was really naive, I was easy to deceive, 2 men became lovers with me at that time and tried to use me sexually ((I live in a Muslim society where sex is shameful, so if my family finds out, they will get angry at me and the society will judge me)) they were much older than me, then they threatened to tell my family and kill me. they did, and even if I closed my Instagram account, they found my new Instagram account and messaged me, It's been a few years but I can't forget, what should I do?
A man threatened me?
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