Smosh is top of subscriptions at the moment.
God knows why.
And as stated, it's about luck. You can have a good video but with the amount of footage being uploaded, it's very hard to get viral/popular.
On a side note, I've made 60p in about a year. Thinking off retiring soon
Going viral is a big illusion lots of folks have, thinking it will get them rich bla bla bla. First and most obvious is, nobody has a clue how to "make" viral content, plenty of people and companies have tried and failed, there is just no formula for it.
Youtube is currently undergoing lots of changes on the front-end and back-end. The sure fire way to make money is to have: 1) Subscribers and 2) Regular and good content.
Subscribers
Youtube does not openly publish a lot of information about its discovery algorithms and all that. But I can tell you that views don't matter so much these days (they are not irrelevant, but they are not the primary factor in getting success). You need subscribers, channel subscribers spend 2x as long on the Youtube platform than non-subs. When you type something in the search bar, the system displays and ranks content based on complex factors, of which channel subs is a massive and growing part. Subscribers will watch your content on a regular basis, a one million hit wonder will come and go and provide Youtube with no tangible results, they want subscribers, you want subscribers.
Content
This is a bit more obvious, but current stats show Youtube users like consistency. You'll notice plenty of channels these days with "schedules". Ie. "New videos every Monday and Thursday". This gives everyday folks something to connect too, and you have to stick to that or they'll walk away. Uploading a video here and there is the wrong way to go about things. And of course, it has to be good quality according to lots of obvious production value factors.
That is in a nutshell what you need to aim for to be on the right track for making money. But bringing it all together, you need skill, luck and charm
