Of course it is a good thing to get what you are scared of in the first try! That tarantula size spider in Ste-Florence that I was not able to get scared me for months just because it got away! You try to live with your phobia loose in your house!
I know spiders won't go away, I don't want them to go away because they exist for a reason and they deserve to exist, I just do not want them in my house and on me when I am outside because it is my phobia!
Maybe you can train your brain to not have your phobia or phobias control you but not everyone is like you! I have learned to be less scared of them but I cannot learn to not be scared of them!