When the going gets tough it is said that those who keeping going are those who are actually tough, however I believe many if not all of those who are able to keep going, have this particular secret to share and thus they have a reason to go on. Do you have a reason to go on in life?
What is your motivation to achieve success? Is it your family? Is your loved one? Is it your fear of failure or your need for excellence? Whatever the case may be, if you reason is not strong enough you may just end up giving. So re-examine yourself and find out what can get you motivated for an unexamined life is not worth living