Brony or Anime fandom is not a cure for your loneliness. These communities temporarily makes you feel warm and safe in a little bubble of supportiveness and camaraderie, but you're interacting on the level of children. These sorts of interactions might be harmless, but most bronies or otaku are involved in the fandom because they're lonely and have poor social skills and are looking for somewhere to fit in. You're starting with a low baseline of social aptitude and then spending lots of time thinking and speaking and acting in a manner that marks you out as a weirdo.

This might seem like an acceptable compromise if it makes you feel happier, if it fills up your contact list and takes the edge off your loneliness, but before you know it you'll be knocking on 30. Age advances on us all, and as you get older and uglier your interest will seem creepier and less appropriate. One day you'll get on a bus and notice a mother pulling her child away from you. You'll dismiss it at first, but you'll notice that sort of thing again and again.

By the time you realise it, it'll be too late. You'll have turned into Chris-chan, too weird to function in normal society but too far gone to know why. You'll have run out of friends who aren't in the fandom, you'll have run out of memories of how you were before you absorbed all of this. You'll forget how you used to speak before you called things Kawaii or brohoofed people.

Fandom is escapism, just like drink or drugs. It temporarily alleviates your suffering, but in the long run it only worsens the problems that you were trying to escape in the first place.

If you feel overwhelmed by the adult world, if you feel lost in a cold and chaotic and lonely place, the last thing you should do is retreat into a fantasy. What you think is keeping you afloat is really dragging you down.