Venting/ Advice

My son's dad took me to court last year for visitation right and that entails him getting following spring break, more time in the summer, and the extra day he's out of school around his dad's weekend like president's day. He has either sent my child back couple days early , not gotten him at all, and I have messages of him stating these. But spring break is coming up and he doesn't want to deal with all of my sons appointments he has ( he has speech two days a week, therapy one day, another Therapy Program three days a week, supposed to start occupational therapy twice a week this week, and not to mention baseball practice three to five times a week during break. ) This parenting plan went into place on July 7th 2022, he has not held up his end of his parenting time at all and he admitted to me that he only did it for child support purposes. I do have enough proof to take it back to mediation and get Dad's time revoked to him admitting he can't handle the extra time. My question is has any other Mama been through this and if you have how did it go? Because I don't want to go back in front of Judge Erwin if mediation doesn't fall through like I'm hoping it does. Not seeking judgment and if you're going to be judgmental please go on, I'm just asking on if anybody's been through this and how to help.