Others don't know where to start. I'm here to tell you though that there is absolutely no way you can project or guesstimate when and if content will go viral, which can be in the form of pictures, video, or written content. You just can't figure that out because there are several deciding factors.
Even though you got a few things against you, there are things you can do the better your chances of posting and producing off the chain content. Beware and just remember this one thing: just because you produce really good content doesn't mean it will go viral.
Now why does content go viral? Again several factors play apart in making content go viral. Does the piece of content, let's say a picture, strike some sort of emotion? If so which emotion? I'm gonna get straight to the point on this; things that strike anger will more than likely get shared over something that is just plain cute or funny. If something is funny it can get shared to go viral, but it's gotta be the right type of funny if you know what I mean. If you take a look at the website Imgur, look at the pictures and you will see which ones got the most views and you will see they type of stuff that goes viral. This site will give you amazing ideas and be very helpful to view when you are trying to create viral content of your own.
When you visit this site, you will see words written on some of the content. Think back to the Superbowl, which commercials did you find appealing, funny, and interesting and why? Advertisers know how to stroke emotion in people and get them happy and in a good mood to make a purchase. Adding something comical to the advertisements is what they do and that's why these big companies drop millions for a good slot during this particular season.
Take a look at the pictures in this post: