Hi there! I hope my answer will be comforting to you. I also struggle with emetophobia, and I actually moved to the UK from a different country, so I was doubly afraid because I didn't know what food was safe and what wasn't. I did some research beforehand - I looked at what restaurants and food shops had good reviews and safe food practices (if someone got sick there, you can almost guarantee they reviewed about it). For the first few weeks, I would eat almost strictly salads, fruits, and vegetables when going out because I was afraid to venture, but it ended up just find. I also figured out what foods were almost always going to be safe - going out for coffee for example cannot really mess you up, it's usually meats and seafoods that do that. I will be honest and say that I never ate seafood while abroad for this very fear, and in terms of meats, I avoided chicken for the most part unless I cooked it myself. Beef is usually safe because even when slightly raw, it's safe to eat. I also encouraged my flatmates to try places that I knew would be safe - pizza for example really shouldn't hurt you (unless you eat too much or have a dairy issue), most pasta and breads are safe. Not sure if you're a drinker, but just be warned as well that in the first year, many people will drink loads and make themselves sick because of their newfound freedom, so be wary about your times out. I don't drink so this was never a concern of my own. Finally, I did what I probably should have done a long time ago lol, and got on anxiety meds and talked to a therapist. I know these aren't necessarily easy to access, but it helped tremendously in not worrying about being sick constantly, because trust me I know how debilitating it is! Not to mention, at least for me, the anxiety made me feel more nauseous than the food probably would have - having anxiety meds and grounding methods actually solved my random bouts of nausea almost completely.
I know this is anxiety inducing, but know that you aren't alone! Be honest with your new friends about this fear if you're comfortable telling them, and if they're good friends then they will support you by doing activities that don't involve eating, or helping you find safe food places to go out and eat at. I wish you well in your new year and feel free to reach out with any more concerns!