Through the Generations

I visited my gramma this past weekend in Florida, with my mom. The two of them act just like me and my mom. It's horrible to watch. They are both bossy and sarcastic and bad cooks with bad taste in food - and neither of them see it in the other one. Gramma kept complaining to me about how bossy my mom is and laughed at her inability to cook. My mom was very good at ignoring the mean remarks, and even better at not caring to the point of making it worse. I hate seeing my own flaws in other people because it makes me realize how other people see me - not pretty. I even have the added bonus of loving these obnoxious people. The people around me must be in hell.
But the fact the neither my mom nor gramma realized that they are the same as each other gave me hope. At least I can see now that I act this way, and maybe it will help me not be like that forever.
Other intersting things about my visit:
My mom got a Blackberry and is always on it. It's common for someone to be on there new PDA a lot but those people are usually doing lots of different things, like texting, surfing the web, using cool apps, etc. My mom just takes a long time to do the simple things. She wants to text someone back - there goes five minutes. She wants us to pose for a picture and then save it - there goes ten minutes. We were getting in the car, with her in the driver's seat, and people were waiting for our parking spot while she stood there and did who knows what with her phone. I had to keep gramma talking at dinner while mom played with her phone. V. annoying.
Shopping with gramma was a trip too. She wanted to buy me something for my birthday so she took me to the old lady version of Marshall's. She went through each isle picking out different muumuus and matching colored denim suits for me and then got hurt when I said they were my style. Meanwhile, my mom shopped in the juniors section for herself. I finally picked out some boat shoes for her to buy me while mom got some tacky silver flip flops with mirrored bangles. Gramma took one look at them and said, JEANNE NO! Mom just laughed and took them to the register.
My mother has picked up some awful habits living alone all these years. She coughs without covering her mouth, she chews with her mouth open, she lets rip some awful farts, and she is sarcastic and judgmental. I love living alone but don't want to end up chewing with my mouth open. How can I avoid this?