Divorce Support Forums: Role of a child in a divorce?

My parents have been divorced since I was 8. They share joint custody and are good parents. I am 19 now and have 2
brothers (17 and 14). My parents make good money but poor financial decisions.

Since my parents divorced 11 yrs ago, there has been a constant feud over $. They have spent 100k+ and have often called on me to swing the other or "mediate". I have always weathered this solely (to protect my brothers) and avoided confrontation- unreasonable request.

I feel that this has led to greater insecurity, passive aggressiveness, and possible depression.

I have attempted to shoulder the burden- graduating Engineering in 3 years-(for financial independence, sacrificing with friends), working and giving my mom every cent.

Still, I am 1.5 semesters behind in school expenses, while my father refuses to help pay and uses it as leverage.

I should call my father out on this, but I feel it an unreasonable request.

What is the proper role for a child to play in their parents finances?

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