I want to be innocent again...there has to be a way...?

I'm a stupid teenager and like all stupid teenagers, I'm not exactly innocent anymore. :( I want to have my little girl innocence back. Well, everyone says once you lose it you can't get it back because your mind is "corrupted" forever and you can't unlearn what you know. But I heard this story about this girl in her 20s who wanted to be innocent again in her mind and she went to a hypnotist and she literally doesn't know anything bad anymore and she is super optimistic and gullible and kind of uhm, childish. Don't laugh at me for wanting this, I miss my happy little girl sweetness, now I'm an obnoxious brat and I don't like it. But could the hypnosis thing work?