Here is a brilliant animation of how our nervous systems work, what happens when they go wrong and how to help. A very useful introduction to how anxiety (and other issues) develop. It covers a lot of ground, so take it in short chunks if you need to and stop for a breather if you start to feel anxious. (8:59 mins)
Did this help you understand why you get so anxious? Did it make sense? Get in touch if you have questions – I’d love to help you understand better.