My brother is 15 years old and we are very disturb with his behavior since last 4 yrs. He is very aggressive in nature and do not follow anything if something is said to do. He usua?y banks the school and almost left school and get fail in class. He is in very bad company nd he has a tendency to stale money even in large amount. Nd also sell the bike of his father. Nd we have a doubt the he is also taking drugs. Nd went out from every day and came late night and sometimes even not came back to 3-4 days. We were in difficulty unable to understand how to tackle him. We have try everything to change him but not getting any result. Please tell us what to do?