Best means of legal self protection(<21)

[TheProdigy]

Hey,

I usually carry around a switchblade with me for no other reason than to make me feel like I would have control in most situations(most not even close to all).

Now that I know switchblades are illegal apparently in my state(Ohio), I am wondering what the best means of protection is for someone under 21..Hopefully something I could carry with me often and not be in trouble or caught for it.

I'm not really looking for mace or anything, something like a bee-bee type pistol(is there any strong enough to really hurt someone, like atleast stop them from wanting to proceed after me?) or something like that.

Any ideas? Price isn't a big deal or anything but obv not in the 1,000's.

P.S. I did a search for "protection" in the subject of posts and nothing came up so sorry if this has been discussed