I think Im too controlling with my girlfriend.?

I think Im too controlling with my girlfriend. I have known her for 5 years now. Just a few months ago we got back together after a one year break. After we got back together we both noticed we changed. I, almost finishing my degree as a software engineer and her continuing her degree in photo. When we got back together she was smoking, I convinced her that smoking wasn't the way to go and to quit. I being a non drinker and a non smoker feel as if control her too much. We just had an argument how she cant be herself around me. She is into the whole hip hop fashion meaning wearing Nike's and all that stuff. Don't get me wrong I support her in everything. I love her so much that I just want whats best for her. Around me she is this sweet innocent angel, before when we barely got things started She would burp and not say excuse me or she will just cuss like crazy. I know im being kind of weird but I rarely don't cuss. I thinks its pointless because their just words that are dumb. We are two different people that are truly in love with each other. She comes from a family were she grew up with divorced parents she has tw o brothers and what i know she gets along more with guys than girls, she hates girls because of the way they act. She is not girly but she tries at time. I sometimes tell her that I would like her to be more Feminine and be more normal. Her last best girlfriend was a hip hop dancer that introduced her to what she is today. She introduced her to smoking drinking and not respecting others. I just want my girlfriend to be normal, I don't want her to smoke drink cuss and all that stuff. I don't know maybe its me. Maybe i lost my youth maybe im getting old. We both love each other like crazy, we really do but we both agree that im too controlling of her. I just want whats best for her and show her how to live life the way life should be lived. Im a really down to earth guy, But i think I matured way to early. Sometimes she acts and does what a guy suppose to do, Me personally its hard to find guy friends i find it easier to make friends with girls, I lived with one my first year of college and i just don't know what to do. I want my girlfriend to just be normal and relax. But in the same time I don't want her to be like me , I guess this engineering is really getting to me. I keep on telling my gf that one day it wil be me and her on top of the world living life happy the way it should be lived. She wants to get a tattoo but i strongly don't approve of that. I told her that i will get her a Range Rover if she doesn't get one but i dont know what she is going to do. I know i am going to be successful in life. But i wont be on top of the world. I don't know what to do, should i let her do her own thing and drink and smoke and use profanity and just act perfect. Im lost I need help, before we first broke up she wasnt like this. She was this very sweet very innocent girl. now she has changed for the bad i guess, But i still love her and only her. My heart has made up its mind and it will never change. WIll she get over this phase that shes going through, I mean were still kind of young. I dont know any more. I love her so much i dont want to loose her. Im taking her to hawaii this summer, i know money cant change anything thats why i really want to fix my problem or if i have a problem? I grew up in a strict catholic family a had 5 sisters no brother, i guess this figures why i can easily make new girl friends. NO IM NOT GAY!! i just like to respect woman i open doors for them i take her to dinners take her every were i say thank you's and your welcome's. I really don't know what wrong with me. Do I just want things to be my way?? AM i living in fantasy?