I agree with pba (who’s the only poster at the time of writing/typing).
Now that we got that out of the way, just remember boundaries, consequences, and sholom bayis.
Kids are normal in that they will test the limits & boundaries. Parents need to teach the kids consequences of their actions. Tension in the atmosphere can encourage children to act out.
Consequences need to be age-appropriate. So a child may need to do simple “chores” to “pay” for the paint to refresh your bedroom door, e.g.
You may need to go over supermarket rules with your child before entering with the child and allow the child to buy a “reward” if the child successfully displays appropriate behavior.
Charts posted with stars and prizes given for positive behaviors work wonders.
Tzaar gidul banim, no one said it’s going to be easy.
And DON”T compare yourself to MS. PERFECT, because that’s just an illusion & image, besides putting yourself down.