Don’t know if I should quit Uni

Hi, I have only just started Uni but really don’t know if it is right for me. I have literally only been here a few days but I can’t help feeling it’s not for me. Here are my reasons why:
1) Only going because I have no direction of what I want to do career wise (which I feel bad about because I know there are people really wanting to go but can’t)
2) I am really shy and quite and am not a good socialiser
3) I don drink alcohol at all
4) I miss being at home
5) My flat mates are all boys and I am a girl which kind of makes me feel uncomfortable even though they seem like nice enough people
7) am only doing the course I chose because i didn’t know what else to do

The only problem is I don’t know what I would do if I didn’t go to uni, I understand I could have a gap year and get a job but have no clue what I would do after as I have not found a passion yet and don’t think anything would change if I were to have a gap year.
There is also the fact that I would be thousands in debt for nothing.
Any help would be really appreciated, and I know It is only the first week and I will keep going a bit longer, but if I do end up not wanting to be there anymore, what shall I Do? Thank you so much! 😊