What are the methods to beat writers block?

It does indeed suck, and beating it varies from person to person. Some people just need to adhere to a schedule and set amount of time everyday to get into the flow, but others write in short bursts, pouring massive a massive amount of work into just a few hours and then none at all for a few days. I really don't want to answer this question with: "guh-huh do your thing bro". But that's what it really boils down to.

please don't write fan fiction. It's terrible.

Drop it and go do something else for a few months. Works for me. I don't do fanfic specifically because I find it boring. To turn that into a metaphor, I'm more interested in creating my own coloring book, not coloring the images in someone elses coloring book. 

So to just to be clear: You're attempting to write about existing characters that were created by other authors and you STILL can't produce anything? Perhaps writing is not for you. There are some online video tutorials on how to do tricks with a yoyo. Scrap your fanfic and watch a couple of those instead.