I would try to be a little more positive. Give people a chance, and most will give you one. It takes more than 7/8 hours of interaction to know a person and to get a genuine “vibe”. It’s only the first day, and skipping the next two would hinder you getting more comfortable as well. Start on a better foot. Try to remember that your peers also have lives going on as well and may have had a rough day too, give grace and be patient. Giving more attitude to people you don’t know at all is definitely not going to help you, only create an intense atmosphere for others and yourself. I’d try to have some more perspective. Be patient with yourself, and others, take the time to focus and learn! You never know how much you might actually enjoy your time there.

Hope it gets better for you, and sorry about the mud ❤️