Is it okay to carry a gun or knife in my purse just in case?

there has been a bunch of horrrible things happening to my town right now and im very scared to even get out my house nowadays.. theres killing stabbing, shootings, Rape, you name it... I want to be safe and have something with me at all times.. Like a weapon.. We have a big park to exercise at and walk around, i really love running. so is it okay to carry like a knife on me? 😭