Help I have ADHD and I can't grocery shop

Hi I need help and ideas how to grocery shop. I am newly married and moved to a different part of town and am very unfamiliar with the new surroundings. When I try to go to the grocery store I get extremely overwhelmed and end up getting just a few things and leaving. I never finish shopping, there are too many choices and too many flavors etc. of stuff that i can't decide and just never try anything new. I have tried to explain to my husband that I would love it if he could come with me, but he doesn't understand why this task is sooo difficult for me. I used the word "scared" once, and I actually meant it, but I didn't mean that I was afraid I just feel so lost there.  My husband knows that I am quite intelligent and thinks that I am using my ADD as an excuse not to do the grocery shopping (which isn't true at all). I do also have an anxiety disorder and feel that I get a little anxious now when I go shopping because I feel so lost and inadequate.  anyways I was wondering if anyone could help me with this, and I was wondering if there is anyone else who struggles with the same thing?