how can i go after people who messed with my financial debt for their gain illegally/ /fraud on my credit reports also?

You can file a lawsuit against them.

My standard disclaimer: I am not offering legal advice, assume I do not know the law in your state and that I am just making suggestions. Do NOT rely on anything I write and contact a lawyer in your area immediately for real legal advice.

Fraud is actionable if certain elements of proof are established by the evidence. Contact a local lawyer - many may give you a free consultation for an hour - to discuss your specifics. Far too many variables exist in the short post you wrote for any further observation by me.

Good luck.

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