It’s so hard to be normal

I somtimes wish I could be normal for one day to know how it feels to actually relate to people. I feel like a selfish person because I talk a lot about the things I like instead of actrually hearing other peoples interests. When I'm around my friends I have a habit of accidentally talking over people, because I don't know when it's my turn and my friend has to stop me from talking, and she will somtimes get angry with me. I like to tap/ touch people a lot because it makes me feel closer to them but I just overstimulate them and I feel so bad. I don't know how to exspress my self properly so I do it through touch. This not an excuse I really am trying to get better.