How do we add more emotions and relationships options in this feature?

I go to my Health app and select the State of Mind category.

I click on the log and select emotion or mood.

I choose how I'm feeling.

Question:

Now my question is regarding the next step. How do I add more feeling options here? All the options here still don't relate to how I feel sometimes.

Next, how do I add more options to "What's having the biggest impact on you?". Here is a situation I faced today. My son took his first steps on his own today. This makes me happy, proud and many more I can't describe here. Then to select who had this impact on me, there is no option of child/children. I don't want to select family here because my child is special and even though he is family I'd still like to address him as my child instead of family. Because family includes everyone in the family but he alone made me happy today. So I'd like to tag him here instead of family.

So how do I add more options? If Apple has not released this feature yet, please do so and at the earliest.