My Vegas suckout

First time playing live in Vegas, I am feeling a bit amped up for a few reasons (thank you red balls).
1/2nl, I have the 200 max buyin.
One of my first hands, I get KK, make it 20 or whatever and I get a few callers including a big-titted lady with about a 600 dollar stack. The flop comes T9x; check check, I announce "all of it" and make a shovel motion. She insta calls and turns over T9 for two pair.

Turn: Jack
River: Jack

Thank you positive variance, why don't you visit me anymore?