Can child support orders include exceptional work hours that are not guaranteed nor a rule of employment?

Why would the Courts base child support on an unguaranteed projected annual income if you have provided the Courts a written agreement from the employer indicating the average weekly hours worked, which are 32 per week at $23.04 hourly? However, the pay stubs submitted to the Courts to establish child support had overtime listed, which resulted from a temporary staffing shortage and co-workers taking periodic time off. Can child support orders include exceptional work hours that are not guaranteed nor a rule of employment? What should the Courts be informed when overtime hours or any additional hours above the weekly average are no longer available and one consistently works an average of 32 hours per week at $23.04 hr, but the child support was set at a projected annual income of $60,000? A modification was granted, but the magistrate only reduced the payment by $100.00, which decreased the combined monthly payment for two kids to $1039.00; ages of kids are 6 & 18. The magistrate also mentioned that a further reduction in payment would not be fair to the kids. That said, the person couldn't meet basic needs due to a long-term ongoing overpayment of child support that has caused the person to foreclose on their home. Following foreclosure, the only person offering a place to stay in the immediate area was a brother in which the brother's landlord only allowed the brother's wife and kids to be listed on the lease agreement. Therefore, once the landlord discovered the individual was living in the brother's household, he was consequently prohibited to live with the brother and told to leave. With nowhere to live, the person was compelled to voluntarily quit work and relocated to a substantially smaller town to work/reside with a relative offering a permanent stable home. In light of this, I’m curious to know the alternative to securing housing when one is faced with an ongoing overpayment of child support, without proper credit rating, has insufficient funds, a