Stop high on the flop, but possible opponent's set, stay in the hand or not?

I have a question, hands 8 and A, for example. On the flop, I turn 8 JJ or I have a pair, and the other two players can have a set right ?!

And how do I know the percentage of wins I can get about? What are the chances of turning over a card that I want, is it possible that I know this? an approximate number?

Good afternoon! I'm not sure, but it seems to me that Seth has less chance than your pair, because there are only 2 j's left in the deck. The second J on the flop reduces the chances of a set. Can't you calculate the odds in poker calculators?

the spot vs more then 1 player - names multipot. In multipots u should prefer more conservative play. If this situation not hyper-turbo SNG, i'll recommend: check/call, check/fold - microlimits; check/call, check/call, check/(raise)/fold (if turn/river gives good bluff runout) - midstakes+