failing and disappointment always with the life. it is a natural thing for every human being. I think you got this idea by the famous American inventor Thomas Alva Edison. here are some of his most famous quotes 
--> I have not failed. I've just found 10,000 ways that won't work.
--> Genius is one percent inspiration and ninety-nine percent perspiration.
---> Our greatest weakness lies in giving up. The most certain way to succeed is always to try just one more time.

giving up is not the solution for the life journey, well said quote by @greatpath