24 years after this song was released, Bad Religion brought back the lyric "Social Suicide" on TESF... possibly the oldest of their lyrical call-backs to previous albums.

Aside from, this song is extraordinarily weak. Sensory Overload has raw passion and aggression, but nary a hint of the intellectualism Bad Religion eventually became known for.

In my relation, this song is about the unexplainable feeling you get when you connect to a piece of music and/or (preferably and) its lyrics. When you just feel it all together it swells and its like a supernatural force (self induced, of course) until you just can't take it and feel like you're going to burst. A "Sensory Overload".
This also shows Brett's reflection of growing up and starting to understand his place in the world and how he's different or unique. He starts to differentiate from the norm, "used to think the things in my head were true/ sensory feedback from things like you" reminds me of the teenaged compulsion and irrationality... particularly how guys react when girls lead them on or are sincere in a relationship then suddenly ditch or runaway because of some sort of pointless excuse. I think the lines before the middle of the song represent getting away from the compulsive thinking, "misleading".
This is generalized in the second half of the song, getting away from all predetermined schools of thought. thinking about "the quivering flesh" and "the urban mess", seeing the truths and wanting to share these revelations.
Finally, I think the parts about "misleading me" and more specifically, "the guitar's misleading me" is talking about how persuing the life of an artist or a punk rocker is viewed as a foolish mistake that leads to losers and ruin. I think this is a personal identification of realizing this, but going on with it anyway on faith that its worth it.

Considering the lyrics and the fact that this song is from their first EP, I think this is about the band. The basic message is something like "we know people don't approve but we're going to go ahead because we have something to say"