If you do your homework on VB, instead of focussing too much on elective C-S, you might find that you'll overcome some of the limitations you've placed on yourself with your anxiety condition. Theres another member here who had a VB and has anxiety, and she has come out on top and better than ever with her confidence in, well, everything! Yes, she was initially petrified, but she found the experience to be extremely empowering, and the pregnancy and birth shattered the myths she had about herself. She still has anxiety, but it's not nearly the problem it used to be.
Anyway, find out about the kind of birth you'd like to have, research it, find supporting literature and your reading should allay a lot of the fears that have been associated with VB for the last century
Good luck, whichever you choose.