Play more than a few champs, don't get zerkers on Akali. I pretty much never see pros get zerkers on Akali, and if they don't get it there is usually a reason why. The guy above pretty much summed up my analysis of your profile. I wouldn't suggest ranked for you until you are around 300-350 regular wins, more than 2 fully filled rune pages, and have knowledge of all 5 lanes. Right now i would put you in bronze league, not sure which division. If you want to get better, watch high-elo streamers, i recommend people who explain their choices and answer questions (Scarra comes to mind). Also read guides and figure out what you can do better.