I have problem. Is that alright?

Hi!
There is something that I think it's bad.
I mean, I don't kiss. I am 18 and I noticed some things. I realised I don't know how to kiss because I never kissed someone. There is a custom in my country when you kiss someone in cheek when you greet them at events, birthday, celebrations ect. I always say that I don't know and I only let them kiss me. I don't really find this comfortable for me and searching in Internet in order to know how to do it makes me feel cringy
I find kissing not cool thing for me. I don't hug people, I find this uncomfortable too and I just don't feel the need to hug anyone.
Now I noticed that one girl from my class may be attracted to me. She looks in my side when I seat near her and she always act nervously when I am around her. We don't talk but I think I should talk to her because I think I would like to talk with her.
But I think I am not able to make romantic things.
Because I don't kiss so I would not make any move or something like that. I would preffer girl to make first step in such thing.
I think I would only talk with her. And I also feel nervous around her because I feel pressure that I have to talk to her (Because she seems to like me) but I don't know what. Firstly because I have anxiety when I do social things and I don't want to show that I like her, that I have some feelings, I don't want to feel cringy.
It would be cool if I could do something with her but..
I also don't say emphatic things like "I love you" ect to parents, family ect
I just don't say and if I had to say I would feel so cringy.
I also don't like parties when you have to dance because I don't like dancing. I find this thing stupid because it makes me feel uncomfortable, my body doesn't feel natural when I try to dance. I just feel like I'm doing a stupid thing. I feel so cringy.
I also don't seek drinking alcohol that much like my peers. I don't find this interesting and getting drunk to state when you don't remember anything is stupid in my opinion. I can live without drinking alcohol I don't find this like "I have to drink at a party"
And I hate that sex and alcohol craving. Whenever I hear a song, I put on tv, there will always be something with sex or love or alcohol. It's so stupid for me. Can't they sing about other things?

Is there something wrong with me?
Is that normal? Is it wrong?
Should I do something about it?
Is it addiction-related?