This is a difficult question to answer without knowing more about your specific goals and objectives. However, in general, you should try to measure metrics that will give you insights into whether or not you are achieving your goals. For example, if your goal is to increase brand awareness, you might want to measure metrics such as reach, impressions, or engagement. If your goal is to increase sales, you might want to measure metrics such as conversion rate or click-through rate. Ultimately, the best way to determine which metrics you should measure is to experiment and see what works best for you.