I'm still experiencing again strain in my debt cause I still can't afford my family the installment is too much for me

I'm still experiencing again strain in my debt cause I still can't afford my family the installment is too much for me. I'm struggling as I'm thebreadwinner I'm the only one working in the family of 6 excluding my Mom and Dad. Really it's tough for me transport and other. If it happen that the installment may go lower maybe +-R5000. Please I need your advice on this...