I've been having an identity crisis, is this normal as 18 yearold boy?

Yes. Specially if it's emotionally uncomfortable, find a good therapist to talk to. It's an opportunity 4 growth & expansion. B curious & look forward to the relief & clarity to come... Keep a journal; recommended readings: demian by hermann hesse, being & nothingness by sartre. Soon i hope, it will start to feel more like a self-discovery process than a crisis...