Life can be hard, so it's quite normal to feel hopeless from time to time. However, if you want to give up at the moment in your life, then may be you need (read) the story of Nick Vujicic.
Nick is a man who has no (arm) or legs. Although his body is not complete(完整的), he never (give) up. He tried everything 69. (possible) and made them possibly at last. He made a (n) (decide) to learn to swim. At first, people around him all thought he couldn't make it. However, he swam better better after practicing hard. Now, he can also paint and even drive very well.
In my opinion, his story teaches me that no matter difficult problems are, I should try (me) best to solve them. I also learn that if I want to be successful, I have to change my thought first. As Nick says " you may not be able to see a path (成功的途径) right now, but that doesn't mean it's not there." When I'm trouble, what I need to do is just keep on (go) and never lose hope.