i can bottle it up though, i'm really good at it too.  until i explode.  and i happened to be talking to someone at the time.  i said things i regret, they are true, but i didn't want anyone to know.  

i wish i could undo that.   no one needs to know those things about me.  i have a perfect life, i'm always happy, tahts waht they need to see.  

i don't want to worry people, i don't want them to care, i don't want to hurt them.  i know they would if they knew the truth.  

i just want to disappear

but i won't.

I would try to avoid the explosion bit though. Maybe you could try journal-ing, or exploding on livewire. Exploding in real life sounds messy.

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If I were an enzyme I'd be DNA helicase so I could unzip your genes.