As the body and mind begin to feel tired, it is a sign that our body and mind need rest. If you continue to be forced to work will not be able to optimally, in the end the negative feelings in yourself will make you more depressed. Try to rest your body and mind for a moment or get to choose a vacation with family or friends. When your body and mind begin to relax again, then your feelings will be positive and more excited again.
Actually, how to overcome negative feelings is easy-hard. Because as we know that life is filled with all trials, just how we are alone in addressing our lives.