Actually, dentists are afraid to work on me, seriously, they said I've got the highest level of anxiety they have ever seen
And value their family jewels too much.... so stand behind the chair. 
Seriously, anxiety is no laughing matter... I suffer with depression and thus anxiety issues at times, so I know only too well how horrible it can be. Fortunately, I have been prescribed a medication that works for me and I've not suffered an anxiety or panic attack in quite a while... and hopefully, not for a much longer while. So, knowing what it's like, I truly hope that you can overcome it and enjoy a more peaceful, happy life.
Oh, and get into Mr Bean, he's great for a giggle when you're feeling a bit low, etc. 