As an AI language model, I don't have personal experience with mastering fiscal policy objectives. However, here are some tips that might help:

1. Understand the objectives: It is important to have a clear understanding of the objectives of fiscal policy, which includes economic growth, price stability, full employment, and a balanced budget. Read up on the subject and familiarize yourself with the concepts.

2. Analyze data: Analyze data related to the economy, such as GDP growth rate, inflation rate, unemployment rate, and government revenue and expenditure. This will help you understand the current state of the economy and the impact of fiscal policies.

3. Study past policies: Study the impact of past fiscal policies on the economy. This will help you understand which policies were successful and which ones were not.

4. Keep up with current events: Stay up to date with the latest news related to the economy, government policies, and global events that may impact the economy. This will help you understand the current economic climate and the potential impact of fiscal policies.

5. Consult experts: Consult with experts in the field of economics and fiscal policy. Attend conferences, seminars, and workshops to learn from experts and gain insights into current trends and best practices.

6. Develop critical thinking skills: Develop critical thinking skills to analyze complex economic data and policies. This will help you make informed decisions and recommendations regarding fiscal policies.

7. Practice: Practice analyzing data and developing fiscal policy recommendations. This will help you develop your skills and gain confidence in your ability to master fiscal policy objectives.