ummm…I pray to Allah that may you have a pious wife and obedient children, and remember the hadith of Prophet Muhammad(SAW), “The child is the master for seven years; and a slave for seven years and a vizier for seven years; so if he grows into a good character within 21 years, well and good; otherwise leave him alone because you have discharged your responsibility before Allah.”
The same hadith has been explained by Imam Ja`far as-Sadiq (a.s.): “Let your child play upto seven years; and keep him with you (for education and training) for another seven years; then if he succeeds (well and good); otherwise, there is no good in him.”
this great article by Imam Zaid Shaykh will also help inshaAllah.
Also try reading this book "Toxic Childhood by Sue Palmer http://www.suepalmer.co.uk/toxic.php to understand the factors behind negative changes in the behaviour of children in this competitive and consumer-driven western society.