This process starts with an awareness that we are not an emotion, we are having an emotion. The emotion is a transitory state of mind and body, not an identity. It can feel stilted and silly to say "I'm having the experience of anger" rather than "I'm angry!" But we're well-served by heightening our awareness of the distinction between the two. Perhaps "I'm feeling angry" is a reasonable compromise.
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Saying that someone else "makes us feel" an emotion suggests that they are responsible for our emotional state, and that's highly problematic.
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Having established some distance between our sense of self and our subjective emotional experience, we can then assess the steps through which we have contributed to our own response.

It might seem that such selectors would be a speed problem. However, the selector matching performance is fast. The CSS declarations are so friendly to compression algorithms that the effort required to optimise a CSS selector is usually better spent working on other parts of your application with a greater return on investment.

The other half of this statement is in the ever growing Google of it all. This update is dipping a toe into creating other measurable User Satisfaction/UX metrics. So you should be thinking-- what annoys me about websites? How would I measure that? And is my own website up to the task?

the reason we’ve been so dependent on lab data for so long is because RUM data is noisy. The steps CrUX takes to reduce this does help to give a more stable view, but at the cost of it making it difficult to see recent changes.