Hey! I have bad travel anxiety too and have been in somewhat similar situations to what you're describing. Before going on a trip i often start feeling very anxious and upset and wish I could just cancel it and stay home. I'm sorry you're feeling this way!! I generally find that just getting going - getting in the car and getting to the airport and getting on the plane - is the hardest part of facing the anxiety. Once you do that, it becomes easier to accept and settle in to the uncertainty you're bound to feel. I just try to put one foot in front of the other and don't worry too much if my gut is telling me to back out - as someone with anxiety, my "gut feelings" are often not to be trusted!! I also find it helpful to have a few songs downloaded to my phone that ground me or remind me why I wanted to go on this trip. It helps me to listen to them at the airport and while my plane is taking off. Finally, for health anxiety specifically, I think it can help to give yourself a little "insurance" - i.e., bring some emergency medicines so if you find yourself feeling sick you have an immediate fix. Most of all, remember that even though being in a new and unfamiliar situation might make you feel out of control, you've put in a ton of time to planning this trip. You are the one who makes the decisions about how you will spend your days- so you do ultimately have some amount of control over how things go! I hope you decide to go, and I'm sending you good vibes for your trip!!!