Paroles, paroles

So there is this song I really like, and particularly the chorus which I quote here.

Mika - My Interpretation

[chorus:]
'Cause I don't care if I ever talk to you again.
This is not about emotion,
I don't need a reason not to care what you say,
Or what happened in the end.
This is my interpretation,
And it don't, don't make sense.

So I don't recognize myself in this song, but taking out the first line, I love this chorus. We shouldn't have to worry what others think about us, nor about what we think. I could come up with ten thousand reason always to turn my tongue in my mouth seven time before to speak but I can't think of any to stop me from thinking whatever I want and hopefully none to stop me from expressing it.
Yet aren't we all scared at some point, really?
Question is what are we scared of?
Anyway though I am getting all philosophical on you tonight, I don't want to bore you. Thus I'll stop here and let you all think about it.
Bye