My nearly 14 y/o brother doesn't have much social interaction (due to being homeschooled) and to fill his social craving I noticed several days when I startled him that he has turned to secretly watching youtube videos and reading other online sources. I was similar when I was his age but my computer had parental controls enabled that eventually led to me being caught and me realizing my struggles and eventually setting myself to go down the long path to fixing it. The computer he is using has no such feature turned on at the moment and I am afraid of the possibilities if he finds the internet to be a better friend than his families. While I do not want to betray his trust so I can continue to monitor the situation, I also am very aware of my own problems and how long, the entirety of five years, it took to clean myself up and I want to tell my mom. To this day, I do not have a close relationship with my parents (quite honestly because of the same things) and I do not feel that it would be wise to simply suggest checking on it to them.
This is a difficult issue and after hours of thought I am unable to come up with a path to success. Any Ideas would be appreciated.