All Downhill From Here

Don't believe a word I say 
Not that you would anyway 
I may be insincere 
But it's all downhill from here 

If I seem a bit remote 
You'll feel better if you say I'm a misanthrope 
Or whatever floats your boat 
As for me, I'd rather sink my own 

Even though I'm here, you should feel all alone 
Maybe the point of this you've just outgrown 
There are names for me that are better known 
Just draw a line and I'll add my own