I’m anxious as heck

I’m such an anxious person and my boyfriend and I have been together for a year. Whenever I feel anxious I never know what to do to help myself feel better and my boyfriend always asks me what he can do to help and I just never know whag to tell him. Like I don’t know what to do for myself and I don’t know what I need from him in those moments either. Anybody have any of their own things they do or ask if their partner?