Do not judge, or you too will be judged. For in the same way you judge others, you will be judged, and with the measure you use, it will be measured to you.
People love these two verses. Especially when they are doing the wrong thing.
I would like you to consider something, first, there will be a judge. So, if you are using these verses to "defend" yourself, then remeber, there will be a judge.
Also, you should consider I Corinthians 5:12. (Remember, the best way to understand any verse of the Bible, is to interpret it according to other places in the Bible on the same topic.) "What business is it of mine to judge those outside the church? Are you not to judge those inside? God will judge those outside."
So, judging is not entirely banned. There are cases when it is necessary, even commanded.
Try to expand your list of memory verses.