So a guy I do not know sent me a message on Telegram saying that someone is trying to sell my account.
Is it possible that some random individual messaged you on Telegram about selling your account? How? How did the account selling bot warn you on telegram if you don't have a telegram ID on your profile? And how did he know you weren't the one attempting to sell the account?
He has not revealed the name of the user.
Cause it never existed.

My email was hacked in April when I lost some significant amount of money, I'm suspecting this is probably a result of that.
How did you get access to the account today and reset the password without your mail? You lost access to your mail in April, and your password was reset last month. I don't believe your theatrics; pay off your debt and stop acting like a victim.