Setbacks

Had quite a lot of setbacks lately. Luckily, there are friends I can turn to. Talking really helps.

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What doesn't kill me only makes me stronger. Thanks pals.

Am I wrong?

"Does anybody here have a relative they're not exactly proud of?" --Melissa and Joey S01E01
Today I took a bus with my aunt and cousin. And for a moment I felt ashamed of having them as my relatives. Here's the story.
Shortly after we got on the bus, my cos and aunt started to open the red envelops. They pulled the money out of the envelops, then simply threw the empty envelops onto the floor of the bus. I was sitting right behind them and taken aback for their uncivilized act. At that moment, I wished I didn't have any relation with them. I know most people would denounce littering, but my reaction just showed how judgmental I can be.
I am brought up to be very discriminated when it comes to making friends. I can find other people's flaws but I can't take it. Once I find someone with unbearable(according to my judgment) weaknesses I would ditch him/her without any remorse. So I don't have many close friends. Is that my problem? Should I change?