I will give some advice your child to have a good sense of confidence, among them are:

1. Do not scare
   Sometimes to make your child a deterrent or you want your child not to do something you do not expect, the most efficient way to use is to frighten him. However, have you ever considered the long-term effects? Fraudulent habits in the long run can make a person easily pessimistic, the habit can be embedded in the minds of a person so that his influence is only visible when someone will make a decision. You should tell the real reason why it is forbidden for him to do so in such a way that the child has a clear reason not to do so.
2. Do not scold for no apparent reason
   Challenge as a parent is heavy, sometimes it affects your emotions. I remember when I was a kid one time my parents scolded me for no apparent reason, as my son was unable to defend himself and prefer to remain silent in the room. Of course you may be angry, but your anger must have an excuse, so the child will know the wrong and hopefully not repeat the same mistake