Feel So down

Dont know why i feel so down even now is a time to sleep. Now already is 12.48AM. I should be sleep already but my mood suddenly down. Tomorrow have a training need to attend at 9am til 12.30pm. I should reprae my mind in working but really cannot see my smile in front of this computer. Yes, it might be have some problem in my mind as thnk too much...However, how can give my life to be better? how to make my mind more strong in thinking? I so suffer now because i cannot help someone.. Because i unable to help... Because i also face same proble in my life now...