Looking to make some money off of my facebook page - 771k likes

Hey guys, I don't really know where to start with this so I figured I'd ask here.

I am the sole owner of the most popular Slenderman fan page on facebook. It can be found here: https://www.facebook.com/dial0forslendy

I have 771k likes, all of which are completely natural. I have not used any marketing tools to get more likes. I've just been posting as Slenderman for the past few years, and people apparently like it

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Here are some stats:

771,123 likes
4,721 talking about this
109,379 weekly total reach

Most popular country: USA (makes up about 236k of the likes)

Demographics: 71.9% male, 28% female, mostly 13-17 and 18-24

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I occasionally use the page to advertise my freelance design portfolio (I also designed a DVD cover for Marble Hornets, so it's related to the page more or less). But other than that, I've never taken advantage of my constantly increasing likes.

I'm a complete beginner at this, so it'd be awesome if someone could give me some tips on how to make some money off of this page---preferably while maintaining its integrity (i.e. I want to retain my creative control, since that's why people like the page in the first place---I've noticed that whenever I try advertising something, I see a notable increase in the amount of dislikes for that day).

Thanks!

By the way, I'm sorry if this type of thread isn't allowed. Feel free to delete it if that's the case.