ladies event wsop

[suzy89222]

i'm an idiot. i'm really pissed at myself. i just busted out about 30 away from cashing. had about average chips (around 18k) until this stupid hand. blinds 400 and 800, 100 ante.

utg limps, mp limps, im on button i limp with Ac9s. flop is 5 handed.

flop 9c8c5s, checked to utg. utg bets 3k. mp folds, i think about raising, but dont, i just call. the two behind me were clearly folding (they practically did out of turn). i thought i'd wait to see what she does on the turn.

turn 5d. she bets 3k, i call.

river 10d. she checks, i think i have the best hand by the way she checked and bet 5k (but took a long time to bet), she raises me all in and i am down to 5k left so i call. i thought maybe since i took so long to bet, that she was knew i didnt have a great hand and would try to bluff.

she had not been at my table long and i had no real reads except she was old (like 65) and didnt seem completely clueless (like most in the tournament).

how horrible did i play this on a scale of 1 to 10?