"If you put your mind to it, you can accomplished anything" - Emmett Brown, Back to the Future
I was once a quitter. A coward and a loser who never believed in their abilities. I tend to judged my capabilities and put limits to what I can do. When in fact, I can do so much, I mean really.
We would never know if we can or cannot do one thing if we won't try it. So what, if it turns out that we really can't? At least we've tried, right?
Not making it in the end does not mean that we are weak, maybe the skills and knowledge that we have in that moment is not enough. Just like when we are playing video games, no one can complete a level in the first try. It could be twice, thrice or as many times as we needed in order to clear that level.
All we ever need to do is to believe to ourselves. We could lose, there is nothing wrong in losing, even a thousand times. Just remember to learn something from losing.
Just like what the elders say,
"Experience is the best teacher".
Lose, make mistakes, stumble, misjudged any situations because why not? we are just humans prone in making mistakes. But losing and making mistakes would always be bad unless we learn something from it, and change what is bad within.
Learn from your mistakes, believe in yourself, put your mind to it, maybe after several tries you can finally advance to the next level of life.