So let me get this right.....
you did something dweeby to someone else, they called you out for it, you puffed your chest, and they challenged you to the da. Then, in the da, they killed you.
Sounds like you just need to get good, before puffing your chest... if your gonna talk, you better be ready to walk.
here is an idea,
If you can't control your mouth, then go to the da with your friends, practice and get good. Be careful, you might soon find yourself calling out others for their dweebey actions that you find lame and at times frustrating once you see it.