There are several things that one should master if they want to be successful in life. These include:

1. Time management: Time management is the ability to manage one's time effectively. Successful people are good at time management, as they prioritize their tasks and avoid procrastination. For example, they may use a planner or a to-do list to ensure that they complete their tasks on time.

2. Communication skills: Communication skills are essential for success in any field. Successful people are good communicators, as they are able to articulate their thoughts and ideas clearly and effectively. They are also good listeners, as they value the opinions of others. For example, they may attend public speaking classes or read books on effective communication to improve their skills.

3. Goal setting: Successful people are good at setting goals and working towards achieving them. They set clear and achievable goals, and break them down into smaller, manageable tasks. For example, they may set a goal to lose weight and break it down into smaller tasks such as exercising for 30 minutes a day or eating a healthy breakfast every morning.

4. Adaptability: Successful people are adaptable, as they are able to adjust to changing circumstances and situations. They are open to new ideas and are willing to learn from their mistakes. For example, they may take on new challenges or learn new skills to stay relevant in their field.

5. Perseverance: Successful people are persistent and resilient, as they do not give up easily. They are able to overcome obstacles and setbacks, and continue to work towards their goals. For example, they may keep trying even if they fail the first time, or they may seek help from others to overcome challenges.

6. Positive attitude: Successful people have a positive attitude, as they believe in themselves and their abilities. They are optimistic and focus on the good in any situation. For example, they may see failures as opportunities to learn and grow, rather than as setbacks.

In conclusion, mastering these skills can help one achieve success in any field. By managing time effectively, communicating well, setting clear goals, being adaptable, persevering, and having a positive attitude, one can achieve their dreams and reach their full potential.