you probably lost with a set versus a better set on the flop, right? If i'm right about this and if this was the case, i understand if you got frustrated, happened to myself a dozens of times but again, it's very unlikely to happen. When something like that happened to me, twice on a single day, i decided to fold low pairs preflop, even in the very early stage of the tournament. But what i realized is that it's not gonna to happen too often, seriously, you must be very unlucky to have that twice in a single day.
So, from my point of view, it's totally ok to call up to 3bbs anytime in early or middle stage of the tournament with low pairs, you could have your hand upgraded quite easily and sometimes, depending on the flop, it could be very hard to read