I don't believe them to be sins, really. 

Lust, gluttony, greed, sloth, wrath, envy, pride.

It's impossible to not feel them. 

There used to be two more - vainglory (unjustified pride), and acedia (apathy).

While I do agree that vainglory can and should be folded in with Pride, I am led to think that acedia is the LACK of any of the seven sins - no ambition, no pride in work, no procreation, no eating, just... imagine Miranda, post-Pax, in Serenity, where everyone lays down to die.

But while I don't find them deadly, they're still useful in literary analysis and general discussion.

Anyways my sin is clearly envy, or, at this rate, acedia. Maybe with a little bit of wrath, but that always cedes to acedia.