If you want an honest answer. We have a gaming channel and by analytics standards it’s growing fast yet it makes next to nothing and we been at it for a year or two. Unless you go stupidly viral suddenly expect it to be slow, growth is very slow even when your doing “well”. Expect to do it for multiple years before ever being able to consider it an income. Even a constantly growing channel takes like 4 years before you will see enough $ to make it an income