also, nameless, I believe you misinterpreted what Rav Twerski said – because emunah 101 is that when we come to shomayim, the din vecheshbon will be absolute, meaning, if you did 100 mitzvos and 10 aveiros, you go to gehinnom to cleanse yourself for what you did wrong – the bad does not cancel out the good and the good does not cancel out the bad. EVERYTHING is taken into account, and a person’s entire being is exposed before him and before Hashem, to be examined – we cant say ‘ok, ill do an aveirah, but then ill do a mitzvah to make it all even!’
I think rav Twerski was speaking about how such an idea is NOT daas torah, since I have heard in seforim that discuss this very idea, how people may think it, but it’s not true.
Plus, it wouldnt be fair if mitzvos canceled out aveiros – the midah tovah is merubah by 500, keneged paranius – meaning, a mitzvah’s reward is 500x greater than the onesh for a sin, but the two are independent of one another, and it would be a detrement to you if it were the way you imagine it.