well when the second order was being calculated we where sent to a mediator, the mediator told me the fact that I was already paying had nothing to do with this case so they calculated my full income not taking in the deduction of child support.
I find this hard to believe. Even in my state, NJ, which is probably one of the worst states for child-support payers ( they don't call it the "Greedy State" for nothing lol), previous child support orders, if any, are taken into account as the law recognizes your responsibility to support
all f your kids equally, to the extent that your means permit. The mediator should have applied the same formulas and guidelines that a judge would have applied in arriving at a child support amount.
When I argued I was told this was a fair deal and if I went in front of the judge he would raise it, so I went along.
But that's just the point. The whole idea of mediation is to save time and expense on the parts of both the litigants and the court. Once a mediator's decision has been agreed to, it becomes binding and is quickly translated into a court order, even if you never actually appeared before a judge. If you don't agree with a mediator's findings, the next logical step is to take it before a judge, without signing or agreeing to anything in the meantime. However, if you did "agree" to the mediator's findings and sign the order, then I don't believe you can re-file and go before a judge on the mere grounds of remorse after the fact. You can consult with a local lawyer who's experienced in family law matters but I think you've already "sealed the deal", so to speak.