The lessons I learnt from an older parent who do not negotiate with children under the roof. When I drop or pick my neighbour's kids from school, they always wonder how come we move so peacefully: belted, minimal fights, etc. My mentor friends told me 2 things:
1. Never argue with your child: your age -> life experiences -> wisdom -> God made you a parent for a reason. Listen to them, guide them, be a parent and friend (in that order)
2. Project your children's behaviour to when they are adults and if you dont like a habit now, it will be worse when they are older. dont imagine that age will automatically overcome certain bad habits: whining (you know such wazuans - very irritating), disobedient (you such junior who cant stick to the straight and narrow, etc)

Huyu mtoto hajapata appetite more than a year after? Asi!