I'm

I'm feeling dark and shifty.

My heart's not with me.

I'm dealing a fast and 'a blast of fifty arts.

I'm gifted in parts, I'm lifted in charts and limits I pass.

Minutes I last, I'm finished and starts diminished.

My past is 'a class unfinished.

I'm the last to ask forgiveness.

I'm 'ma craft to pass the class and laugh pernicious.

I'm 'ma barf nutritious bars; delicious.

I'm on Mars, judicious scars; religious Nah's.

Lubricious.