Our wants are numerous and setting the goal for each one will make us achieve getter things and also writing them down make us to quickly achieve that.
But also we might want to achieve our goals once or let me say achieving our goals two at the same time, some might say killing two birds with one stone. We might be in the process of killing two birds with one stone and eventually not achieving anything. It will be on motion but at a point we end up not bringing it into reality. It will just be a mere goal which couldnt be achieved.
Take your goals one after the other so as to make your goal will come to actualization.