1) Life presents problems and difficulties, but also solutions and opportunities for success if we accept challenges and learn from mistakes and painful experiences.
2) It is easier to focus on others' faults than to recognize and learn from our own mistakes, but personal growth comes from facing challenges and changing ourselves, not complaining.
3) While the present may be difficult, having the right attitude and learning from the past can help us create a better future rather than dwelling on mistakes or lost opportunities.