Attached to the constitutive requirements of the crime of libel, libel refers to the deliberate fabrication and dissemination of fictional facts, which is enough to degrade the personality of others and damage their reputation, and the circumstances are serious. Not only did you deliberately fabricate false facts, as you said, they spread on famous websites such as Tianya, Taizhou and Maopu, so the plot was also very serious. In law, the so-called serious circumstances mainly refer to fabricating facts and slandering others many times; Fabricating facts and causing serious damage to the personality and reputation of others; Fabricating facts to slander others, causing adverse effects.
Under normal circumstances, if you commit this crime, it will be dealt with only if you sue, that is, if the victim sues, the court will accept it, otherwise it will not be accepted. So now you should actively contact the victim, negotiate and settle, and try to reach an understanding with the victim.