Robert Jenkins' quote "I made a huge mistake of my life" suggests that he has done something that he regrets deeply. It might be anything from a mistake in his individual life, such as a relationship gone wrong, to an error in his expert life, such as a bad service decision. Whatever the mistake was, it was considerable enough for him to acknowledge it as a big mistake. It is most likely that he is reflecting on the mistake and the repercussions it has actually had on his life. He might be feeling remorse, regret, or pity for his mistake, and he might be having a hard time to proceed from it. It is necessary for him to remember that mistakes become part of life, and that he can learn from them and grow. He needs to focus on the lessons he has learned and utilize them to make better decisions in the future.
"Life is life - whether in a cat, or dog or man. There is no difference there between a cat or a man. The idea of difference is a human conception for man's own advantage"