Why do I often feel bad ?

Today,let we talk about a key issue：how to always maintain a good mood ?

I always feel bad in recents years,but I don't know why ?why I am always in this serious bad situation?but I still can't answer this question certainly by now.

Nevertheless,I still try to find some possible answers to answer this question.

I would feel bad if we don't accomplish our goals in anticipation akways , and then I think I am a loser.This feeling is so terrible,so I must try our best to avoid this behaviour often.

For another reason,in daily life,I often meet with  bad customers,their words and behaviour always hurt my heart.but as day in and day out，my ability to withstand the pressure is getting stronger and stronger，one day,everything is clean.

Also,I have set a very high life goal for myself，I think I can't achieve this goal all my life，so I feel very bad.

But I believe the future will be better and better，I must be able to approach the goal.

End,good night.