I'm an Oxymoron

I think I am an oxymoron quite different but the same. Understanding less is more Subdued, yet can’t be tamed. I’ll split in two while being whole ditzy and still brainy. Make many plans without a goal be sad while being zany, Have champagne taste with beery purse find ugly very pretty. Feel really blessed that I’m so cursed quite stupid when I’m witty. You see, there’s more than one of me sometimes I’m up when down. Politely rude when wrong but right Show then a smiling frown. Clearly confused, I know I am more forward than behind. Get close to you while staying free be stingy when I’m kind. Loud silence lets me contemplate and dream when I’m awake. To keep in front, I must backdate my words, just give or take.