Under pressure

*I judge people very easily but unlike most racist pricks in this world it's not because of stupid bullshit like race or age and especially my hair color. I can't stand rude people who think they are better than you just because they are a certain color or have a little more money in their pocket. I know they are insecure douche bags but why be so negative.
*I was inappropriately touched as a child by a family friend's daughter nobody knows about besides my brother but he was too young to do anything about it as a child and now we don't speak about it. I wonder if that's the reason I have cheated on all my exs and get bored easily in relations whether it be with the relationship or the sex.
*I can't get my ex out of my head, its been over a year but I still think of him all the time. He treated me like shit the entire 3 years we were together, drank too much, called me names, and always blamed me for our issues. I know he would always take me back because I was the only one to leave him, even tried working things out but wasn't physically attracted to him but I can't get him outta my head.
*I am a pathological liar. I try to tell the truth but lies just come out without any good reason (not hurtful fucked up lies just small ones) I want to tell people the truth but I just don't.
*I love my parents and my younger siblings but they put too much pressure on me to take care of everything, which I do with little complaint, but if I fall a little short or do something for myself everyone throws it in my face. I'm in my early 20s and need space.