Well, here is my take. There is a huge amount of psychology going on in a family. In a way, i don't like it. Parents want that freedom they had before they had children. Parents (especially mothers) have a maternal/"i gave birth to you" mentality where the child becomes some sort of a possession. The child appreciates the love and the hominess but resents lack of autonomy. The child 'revolts' at a certain age in adolesence and then may even start experimenting with drugs. Lots of parents don't know how to handle the situation when their boy or girl starts experimenting with drugs. Lots of times the parent asserts their power as the parent by repremanding and scolding. That makes the child feel even more alienated as the child comes-to-age; it is a difficult and trying time as it is already for the child. The child 'revolts' more. And then the parent either continues to scold and throws their hands up in frustration and gives up on the child while still possessing this thing they call 'child'. This is where the rift is made. And then the child is labeled the 'black sheep'. The label of black sheep almost never goes away. Two years of being labeled a black sheep will take 30 years to reverse. So, you, as the child, must maintain focus on your own goals and be determined because usually you have lost the comraderie of a complete family.