Excuse me, if there is nothing in this life, leave your brother alone. Although their ancestors must be very young, their future is unknown. What does this poem mean?

3 Liang 7 Qian

This life is honest, open and talented, unwilling to rest, my sixth brother is weak, my ancestors are helpless, starting from scratch, and finally my luck is complicated, I can't gather money, I don't bully people, I am loyal, restless and easy to get angry. I can work hard at first, and I can make career plans when I leave the field. It's time to change careers, but the middle limit is not satisfactory. Finally, they can be sentenced to punishment.