I want to use a word that not only conveys the meaning of "thinking inwardly" but also is common, informal and normal in native English. I use the examples below and some synonyms for clarification, but please don't limit yourself to these ideas since I am not a native speaker, and inform me if you have opposite sentiments. Also, I'm looking for a "verb" as its equivalent.
In the modern world, in which we are snowed under with countless tasks, almost every adult feels worn out and experiences burnout, and forgets to care for his mental health. Therefore, I hold this contention that we must devote some time to think inwardly about our emotional and mental problems.
There are also some other terms that I've heard, but there are some problems with each of them.
For being "common": I searched https://www.ludwig.guru and https://www.english-corpora.org. For being "professional", I used my own knowledge since I study psychology, and have only seen this word in old psychological texts.
"think intrinsically" is not common and usual.
"introspect" is rather uncommon and is used in professional contexts, but I am looking for an ordinary word that we can utilize in informal speaking, and our addressee understands easily.