Life is just a sweet mixture of good and bad experiences. We all know that there are various stages of life of all the creatures present in this universe. Each stages of life has it's own level of experiences depending on the person's predilection. The level or quality of experience increases as the maturity increases. A person's achievement in his life is always means a lot to him which can't be compared to anything else. To some extent a person's achievement depends on how much he has learnt from all his good and bad experiences. 
Well, good experiences can be anything for which you feel happy, it may be the thoughts through meeting interesting people which you feel to have a positive impact in your life, it may be your result in the examination through which you expect better learning, it may be a decision which increases your confidence level, it may be your own thinking and actions that can have social & economic values and so on. Just think a few minutes about your past and try to memorize all the good experiences you have came across since your existence to this world, yes your existence...not by birth but by thoughts. Try it, you will definitely enjoy! if not you will at least able to describe yourself in a better way. Isn't it?
It's obvious that you can't get always good experiences in life. The bad experiences also plays very important role in our life. It will give some important lessons which will help in takinng decisions in future. Now a days the decision making is very important trait for a person's growth in any field, whether it's business, sports, research etc.. and even in our personal matters. To take such decisions valid grounds are requied. These grounds may be the factual data which people get from their own good or bad experiences. Based on this we can take favourable or unfavourable decisions. 
The problem comes when people don't know whether it's a good experience or bad experience.
A simple way to identify it would be finding the details about that experrience. A good experience may come by self work or from observing the other's good experience. The same will apply to bad experience also. In that way we can judge our life as good and bad experiences.
I will conclude by writing that life always have some good and bad experiences. It depends on how a person takes it to make his decisions.
