Company of optimistic people makes your life easier.Many times we get stuck in the company of some people, who always sit with the cry of their sorrows. They do not know how to be happy in life. It would be good for you to stay away from such people.
If we go on determined that whatever we think today, we will think well then our day will surely go well. We can do the same experiment for a week, then see what changes in your life. Whenever you are disappointed, then you should befriend some people in your group who are cheerful and energetic.
Staying in touch with them will give you new inspiration and frustration will get lost in your life.