Speaking from personal experience, think of it like a pendulum. Once upon a time (way back during my college and university days), I too got caught up in the internet, desperately trying to keep up with others to understand jokes, memes, trends, etc, (bearing in Internet 2.0 as people are familiar with today was in its infancy; I remember the time before Twitter and Youtube existed) until one day I just had enough. I couldn't keep up anymore and I couldn't pretend; I was just living a lie to fit in. So I took a step back and questioned, what really interests me, personally?
The answers came to me over time, sometimes by design, sometimes by accident. So I say, investigate, research, listen to what the inner workings of your mind desire for stimulation, entertainment wise or intellectually speaking or even both.
And don't worry if the rhetoric you subconsciously believe in doesn't always necessarily mesh with everyone else's.
Fanshipping exempted (which is something I personally have no real understanding of at all, I'm sorry), I agree with IdahoRose's paragraph... even something from your childhood could provide some inspiration.
Research and see what works for you. Worked for me and King of the Hill for example -- I disliked the show a lot when I was younger, because 'Deep South' culture (as I call it, so Texas, Alabama, Louisiana etc) didn't translate very well with me at that time (bad experiences with a family friend who came from Kentucky, so that discoloured my world perception at a mere 12-years-old). But now as an adult (and wiser to the world, so I'm not as unforgivably prejudiced or lamentably ignorant), I can appreciate the humour and soft satire and I'm quite a fan.
So, expand your mind and experiment. Try anything and everything, media and/or literature-wise and see what happens - you'll be surprised at the results hopefully. And if what you find just happens to à la mode, good for you. And if it's not, then at least you can personally appreciate it on your own merits.
Good luck!