The first thing to note here is, that the total pot was around 20BB, which mean, that each player started with around 7BB on average. And since someone acted before you, the only way for you to be calling a 3-bet would be, if you initially just limped behind or just called a min-raise from SnoopyH, and then picador23666 jammed, SnoopyH called, and you called as well. With less than 20BB you should generally not have any calling range but play all your hands as a push or fold. So the answer to your question about, what your calling range should be, is none, because you should be the player jamming and not calling.
However it can be ok to sometimes trap with a premium hand to induce a shove from someone behind, and in that case you should obviously call, when you get, what you were trying to induce. So no. There is not a close decision here at all. There is not even any decision other than jamming or trapping, when the action get to you first. And being super results oriented, had you jammed, then picador23666 would likely have called, and this might have allowed SnoopyH to fold, meaning you would not have lost all your chips but only some of them. So there is a protection element in jamming rather than trapping, when you are less than 20BB deep.
Finally ICM stands for Independent Chip Model and basically mean, that chips go down in value, as you accumulate more of them. So if for instance in a cash game you would need 40%
equity against the opponents range to make a profitable call, then maybe in a tournament you need 50%, when there is high risk aversion like near the bubble, and a call is for all your chips or most of them. But when you correctly call with 50% equity, you still lose 50% of the time. So "studying ICM" does not mean, you will never lose a hand or will never bubble a tournament.
The way, you are using the word ICM, its a bad excuse to make bad folds, which is not, what you want to be doing in poker. What you want to do instead is to build up a
bankroll, so that you can buy in directly to a $11 MTT, that you want to play, and not worry about it at all, if you happen to bubble it this time. And to acheive this, you will need to both study and practice more. Best of luck
