feeling lost, dk what to do

First year here as an international student and I feel depressed before even starting. I don’t know who to talk with. How long till I get into a course that I’m still waitlisted on? How can I deal with university? iPad or laptops? How do meal plans work are they a must? Where can I access my uOttawa card. I can’t find these videos that explain my questions. Any solutions? Please someone make me feel a bit calm:(.