[DaycareInferno]

you always need to have a stronger hand to overcall than to call in a given situation, regardless of the improved pot odds, because the odds that you have the best hand are dramatically lower. you have a good hand, but not a hand that can double overcall an all-in overbet.

your problems really start preflop here though. you don't ever really want to cold-call raises with hands like ATo/KJo, etc. even though its just a miniraise, and even though 2 people called, creating good odds, this isn't the kind of hand you want in this spot. you want something like a small pair or a suited hand that has some big pot power. if you don't have a hand like that, you should either dump your hand (ATo), or raise coming in (QQ).

also, you shouldn't ever make tiny bets on the flop. usually you want to bet somewhere between 1/2 to slightly above the ammount already in the pot, based on number of opponents, texture of the board, and strength of hand. in this case, you have a strong but vulnerable hand with many players in the pot, so you should be betting somewhere in the neighborhood of the ammount of the pot.