hi
i just finished first year and i felt much the same
i was so shy i didnt think i could talk to anyone, but i moved the 200 miles and i was forced to talk to people by necessity
talk to your flatmates the first night - thats what i did and we all went out together - then join clubs as well and youll make friends and stuff

there may be a therapist through the colllege you can talk to

trust me - itll be ok