Last time there was a very good channel with good content, communitychannel on youtube. Because of some personal issue, she stops making contents. A lot of YouTubers that I subscribed, abandoned their channel after facing a personal issue. The trick is to use the youtube channel as a stepping stone, to brach out do something else in your life. If you rely solely on youtube, then you are stupid because fame isn't gonna last forever. Even the most popular idol group will be out of favour aftera couple of year.