Have you tried a walk with some music? I have a selection of stuff I walk to and I love it. I actually get quite miffed if I have to stop and speak to somebody I know!!
I have some relaxation music, the Gypsy Queens, old Bowie stuff, ancient Tamla stuff, Lesley Garrett, The Priests, Take That, Michael Buble, Robbie Williams, and loads more .... a real mish-mash but I love it all.
I also knit and crochet a lot and that helps me switch off. When my Dad was terminally ill I was very anxious and just didn't stop crocheting in my spare time and made a huge throw which I now treasure yet I can barely remember doing a stitch of it.
Have you tried Rescue Remedy? I used to take that but then got a flower remedy made up specifically for me and that really, really helped. PM me if you want details, the lady will post them on.
Hope that helps.