I know just how you feel. I am on holiday at the moment and it’s not easy.
I just try to remember to make better choices when I can, make choices just for now, and accept that I’m not going to be ‘perfect’.
My husband and I are touring with a group, so all eating times are social. Meaning it can be difficult to eat differently, and in a wholesome individual way. But accepting that ‘it is what it is’, is taking the pressure off me.
I wish you the best of luck and really hope you can enjoy yourself, accept any eating choices and have fun.