I have a mix between Alex Gaskarth, JB, and Billie Joe Armstrong hair. Should I cut it shorter?

I'm a 17 year old dude that's trim and kinda tall. A lot of people describe my hairstyle and dress as a happy medium between Alexander Gaskarth, Justin Bieber, and Billie Joe Armstrong. Recently i've been wanting a Travis Barker-like mohawk, which some people say they'd love, and some people say would look really, really stupid. So I would like some help with this, and i'm sure you fine people could help quite a bit. So, what should I do? Mohawk, or long brown messed up hair?