There are two types of person, very simple to see half full or half empty. Try to be optimistic and always think that  good days will be coming soon. That will make you lively, happy and laborious.  Life is series of difficulties but you have to face each and every so that you feel difficulties is usual. So, patience and stick in one job is also important.

Finally, your state of mind is most important, control yourself, always laugh, try to be happy. It is difficult but it is a way of life and every one has to learn even at the end of the life too.