Exposure therapy is a form of cognitive behavioral therapy that helps patients overcome anxiety.
Once someone has expressed a willingness to confront their fears, their therapist will slowly start to introduce the stimuli that incites panic over a series of weeks.
A person who's scared of spiders, for example, might start by just looking at small pictures of spiders before slowly working up to interacting with a live one.
It can be an incredibly effective technique. Fear doesn't typically vanish on its own. It takes practice – you have to lean into it just the right amount. Give your mind a chance to realize that this is not a life or death situation, then lean in further.
And you don't need clinical anxiety or a severe phobia to apply this to your life. For anything outside of your comfort zone, you can start small by finding your personal adjacent possible, then go big.