Ephesians 6:4 (New International Version)
4Fathers, do not exasperate your children; instead, bring them up in the training and instruction of the Lord.
While it is a good thing to teach and train our kids to gradually take on more responsibility, if you are consistently frustrated with your child's performance at a particular task consider if it is age appropriate. We should expect great things of our kids, but sometimes they are not ready (mentally, physically, emotionally). Compare your child's abilities with your expectations and consider adjustments.
Prayer Suggestion: Talk to God about your expectations, for yourself and your kids.