The only way to become better at fps is to play them. A few years ago I was a disaster, however I played and when it was too much for me I cheated, this allowed me to improve and after I got the PS3 I couldn't cheat anymore. My first 2 action games on the PS3 took long time to finish, now I can play fps even at the hardest difficulty, at this level it takes again long time for most games but I do it because I realized my game improves a lot with the effort.
If real is what you can feel, smell, taste and see, then 'real' is simply electrical signals interpreted by your brain
From The Matrix