CHRISTIANS ONLY PLEASE. Am i a bad christian?

To start off I'm 14, an ordinary teenage girl haha. My family (myself included) are Christians, but I'm just not as religious as my mom is neither is my father or my sister but that's something else haha. Anyways, I don't listen to christian music, i listen to almost all types of music and lately rock, pop punk music, I curse (a lot, no I'm not 'okay' with the fact I do but I never do it to hurt/insult someone unless I'm joking), I really wanna get a tattoo (when I'm older of course), I lie, I love when when someone on my dads side throws a party considering they drink a lot and stuff (I'm not one of those teen who go out get drunk of anything, I stay home on Twitter all day everyday lol) and I've done things I regret and know I shouldn't have. I'm not one of those rebellious teens whose parents force to go to church, but i don't really like going cause I just find it un-interesting. I feel like sometimes I only go to church when I'm in trouble or something and I just feel guilty, I love Jesus with all my heart. HE is my saviour, but I feel like a terrible Christian, I'm just not into that whole over religious stuff like my mom, having to stay sat for about 5 hours hearing something that i honestly don't really pay attention too, all I basically do is pray and read the bible sometimes. I got baptized as a Christian when I was 12. I knew at that moment I was accepting Jesus into my heart and that day I just felt like a new person, but I went back to being the same person, when people pray for me or when my mom gets other people to talk to me I feel like i can become a better person but once its the next day that feeling goes away and i just continue on how I was before church. Maybe its cause I'm young and ill understand more when I'm a bit older, but I'm just so confused :(. I don't like being like this and I do wanna be a better Christian and serve the lord but then again I'm just not into this whole thing as much as others. Please no rude/mean comments.