Most of mine is social anxiety now. I try to test myself when we are out. Like go off on my own for a bit. Years ago, before I ate more organic, I would go to our local Rite Aid & get a candy bar. Was something small but it made me feel good that I went out by myself. Plus, hey, it was chocolate! :)
To handle an anxiety is liken to handle most anxieties, try to test yourself. Talk yourself through a realistic scenario. Ask yourself WHY are you i.e. afraid of heights. What could happen & then break those things down logically. That is what helps me. To be in control over an uncontrollable situation.