Exactly this is what's helpful, too. Don't resist, just describe in my body how the anxiety feels. Today I was getting anxious about the future. Instead of ruminating I asked myself how does it feel? I noticed it in my stomach so I focused my attention there. Yes, I feel tension in my stomach and observed. In about a minute it was gone. I continued cooking mindfully, focusing on textures, smell, sound of chopping... The anxiety has gone away completely.