Trying to stick around thru the worst

So im speaking for myself but all my friends agree this is the worst the game has been since the beginning at least in domination so I def thinking im gonna retire from it even tho its my favorite but the manner in which the fights are is so depressing and at the time it happens enraging ive played so many fps in my life that I can honestly say ive never had this much trouble with a one one fight in a game so off I'll shoot someone with a clip and die from a couple shots and I saw something earlier where someone said there is some sort of thing that handicaps for a better word the higher level and more experienced players against the lower levels I dont want to believe it but that's about how it feels I feel im working so much harder than everyone else around me im dying more than the people that only get 2 kills and double digit deaths i play alot so im over level 400 but I can't compete against a level 20 or 60 person while they are doing horrible but I'm trying with everything doing headshots and hitting the kill zone nonstop and then I die from a shot or 2 to the arm or leg im on the forum constantly hoping for some sort of support something to tell me why I shouldn't be as depressed as I am I love fps I hate futuristic crap cod forces on us and the repetitive way they do modern warfare I did my homework and for months this game was amazing but now its just so hard to just get a kill forget going even on the k/d so im trying to tough it out waiting for some sort of patch to the hit reg or something that helps just enough I can enjoy the game instead feel like just being bullied all the time cause lord forbid u ask other players in the chat if they have any problems then your just going to be ripped on the rest of the game and told how bad u suck when everyone knows im fighting the game just as much as them im not a kid I go back to doom and golden eye and all since I need this type of game im a true gamer but how do i survive this when its taking so long for the main fundamentals of a fps shooter to work correctly like equal bullet damage its heart breaking to a player like me ive tweaked every single gun I have to best performance possible and still can't seem to make it work anymore seems like its worse every day