Give up and lose out
The problem that most people have in meeting their goals is that they give up before they have already started. Or they are almost to the point of achieving their goal or goals and they give up at the last moment when one more attempt or try would lead them to succeed. Remember that as long as you are alive anything may be possible.
Thomas A. Edison once said that Our greatest weakness lies in giving up. The most certain way to succeed is always to try one more time.
There are many good reasons to persevere. You may just be the person to come up with a cure for a disease, or the next great novel, or the next breakthrough in technology. Or if nothing else you may be the one who inspires someone else to do so.