In the field of PR, there is often a tendency simply to analyse too many metrics. Yet many of these may be unhelpful and tracking them only takes up time that could be better used.
If you want to measure your PR, it is important to use appropriate metrics and eliminate the unsuitable ones. Concentrate therefore on metrics that bring you some kind of actionable recommendations.
If you track too many metrics, it can prove very time-consuming. Gathering data and the subsequent analysis is too demanding in relation to the outcomes.
So you need to focus on just a few metrics that really generate helpful insights. Drop some of the metrics and focus on a handful of key items which are truly meaningful.