Quitting is the cowardly way out. Just because a noob kills you a few times doesn't mean you stop playing! You get back up, and you get better! And if you don't try to simply get better at the game, you never will be.
bruh don't worry don't leave cuz some noob killed you once, just fight them again. You wil become stronger. Plus, there should be a damage cap. btw, most noobs can't fight someone who is not in there line of sight and will go passive if the don't see you, as long as you are not infront of them.