Please help

I am a little bit confused to start my studies in UBC. When I was a child, I wanted to be a doctor. But when I grew up, my interest changed. And know I took admission in UBC for a 4-year program in Philosophy. My confusion is not with the course or study. Along with admission, I booked for a

. But now I am confused with this sharing. If I can't handle my partner who shares the hostel, what would I do?
When I asked my friend's opinion, they also asked me the same question. It will be very difficult for me to stay with a person who is not friendly. But shared accommodation is cheap and affordable. This made me choose this option. I have to spend money on my books and hostel belongings. It will be very helpful if the hostel charge is less. This is the reason why I choose shared accommodation. Has anyone had any difficulty while sharing the hostel with an unknown person?