Meditation is not concentration. It is simple awareness. You simply relax and watch the breathing. In that watching, nothing is excluded. The car is humming - perfectly okay, accept it. The traffic is passing - that's okay, part of life. The fellow passenger snoring by your side, accept it. Nothing is rejected. You are not to narrow down your consciousness.
Existence always cares about you. If you are authentic, if your search is true and you are not a pretender, time will help you, will cooperate with you. Time from existence`s side, and patience on your side.