Is it normal for a girl to be agressive?

No its not normal at all. You have some serious issues that you need to sort out. One day you're gonna get mad at the wrong person over some dumb shit and your lesson will be learned.

Speak to a therapist or at least someone you trust who will listen to you without judging. Tell them how you feel and brainstorm with them about why you feel that way, what caused it, what triggers it, etc. The more you understand the more you will be able to control it. Allow yourself to take constructive criticism to use it toward your personal improvement and let someone help you see the world differently. Don't take advantage of anyone who is willing to help.

Yes, it's normal. Women are like this, especially on their period.

Noooooooooow for my actual comment.

No, it's not normal. You should try get some anger management, it's not good for you or others around you to be this angry and you'll cut people off from being around you. It's not attractive (in the sense people won't be attracted to being near you, not just relationship wise).

I agree and say this is normal, because it's normal for me. You haven't killed or severely hurt anyone, so it's more normal than you think. I suggest though, that you see a psychiatrist/therapist. If you see a therapist. Try to find one who specializes in DBT (Dialectical Behavioral Therapy.) I'm 22 years old and seeked treatment when I was 19. I was diagnosed with a few things, but the most active were bipolar disorder and borderline personality disorder. I have seen a therapist, and am currently on medications (nothing crazy), and it makes a huge difference. Let me clear something up for you though. The right medication doesn't make you a "zombie." It allows you to feel the same things, but in moderation, meaning they usually aren't overwhelming. When I have an episode (what I use to describe an intense bout of anger/agression usually for no reason at all), the medication I'm taking delays the episode, so it becomes less severe. However, in the case the episode bypasses the medicine, the medicine helps me to stop and think before I act. It instead, delays my reaction. Like I said, I still deal with the feelings, but with the right people in my life who understand, and learn to adapt, it makes it so much easier to deal with :) I hope that helped!!

Being that aggressive usually makes things worse and those type of people aren't enjoyable to be around. I can't recall ever solving anything by just getting angry and acting out. However, when I think about the situation and rationalize I get a ten times better result.

Understand that accidents happen and it's no one's fault. For example, someone falls down and their backpack hits you. Taking your anger out on that person for something they didn't intend to do is completely pointless. Shit happens and it will always happen. You can't predict or control it, like the weather. You brush it off and move on. No sense in beating yourself up about it.