Hello K.,
My name is G. and my son now 7 made my husband and I see our luck. We had him expelled from two childcares and in kinder he kicked the vice-principle several times. We thought this was life for us. We were actually told that he was ADHD and had mild autism. Well all those diagnoses were all wrong. The only thing my child had was that he was very immature for his age, but very smart. He also had a problem with detaching from me. I would give it another 1 ½ years and I am almost sure he will out grow his problem. Do not give him any negative attention. They are so smart that they know how to manipulate us and if it is with negative attention that is what they will use. Give him a lot of love, but you must me firm and keep your word every time.
Something that helped us was getting my son into recreational activities, such as soccer, basketball, swimming, etc. They have so much energy they need to have a place to use most of it. If there is something he really likes make it become a prize he could earn. For example, my son was obsessed with video games and we made a calendar with behavior and things he needed to do and he would earn 2 minutes for every section he would do without me telling him or arguing about and this was per day. At the end of the week we add up all the minutes and that is the time he would play. I would not give no less or more time just what he earned, this really helped. This year my son is in 1st grade and he has probably brought home maybe 3 somewhat bad days in his folder the entire year. He is an over achiever academically, which makes us very proud and happy. We also learned that praising him has helped him a lot; of course we make it clear that he can not be extremely prideful of himself. Although he learned what we expect from him and he always wants to please us. We also read bible stories to him who has been good because he loves God and always wants to please him as well.
Good luck. Just hang in there in no time you will look back and think I can’t believe that use to be my child. Have a blessed day.