Whoa! Great read! You sure B2 is as good as your English gets? 

We are all humans

It’s easy to get discouraged when something goes wrong, when plans fall apart, or when you make a mistake. It’s okay to feel frustrated and annoyed…but only for a little while, and then you have to move on. You can’t let one mistake or bad experience ruin or define something for you. Just because one guy or girl screwed you over, doesn’t mean you’ll never find “the one.” One boss who talks down to you and gives you busy work doesn’t mean you’ll never be respected in your professional life. Getting lost once in a while doesn’t mean you’re directionally challenged. Life isn’t all sunshine and rainbows. We’re going to have hard days, people who treat us badly, and plans that don’t work out. But, we’re also going to have incredibly happy, rewarding days, people who make us feel like royalty, and opportunities that turn out better than we ever dreamed of. 
One night, I overindulged and had to call in sick to work the next day. There was also that one time I didn’t feel well and should have stayed home, but instead I got sick on the subway. As embarrassing as these things seemed at the time, they were only two days out of the many I have been blessed to have on this Earth. I did not swear off alcohol or good times. I did not forbid myself from riding on the subway. Because doing something unwise or silly once does not make it a habit, and we have to remember that we are all human. Sure, there are certain times when we have to give it our all*, and when everything is riding on one chance. Those days are like the playoffs of our lives. But, our run-of-the-mill day is a “regular season” game**, and if we don’t reach our goals one day, it doesn’t mean we’re down for the count. We can learn from one-time experiences that we’d rather not repeat. We can look back on them and shake our heads and laugh. But, we cannot and should not let one time stop us from living, dreaming, and doing.

 *What do you mean?

**That is the best I could come up with. I am sure there is a better way to say this that is closer to what you originally said.