Feeling rather shattered at the moment, but having just entered the paid workforce after a good many years, it also feels great. Not working made me feel that we were not moving anywhere, remaining stagnant while everybody else was moving forward with their jobs. So no matter how tired I feel right now, its because im doing somehting productive and ultimatley providing for my children. If anyone is in  a position now where things feel mundane, everything is the same, things will improve, things change all the time, just keep on going and focus on the reasons that you do things.