overthink

/ˌoʊvərˈθɪŋk/
verb
  1. To think about something too much or for too long, often creating unnecessary problems or worry.
    • He tried not to overthink the test results and just waited calmly.
    • She tends to overthink simple decisions like what to eat for lunch.
    • If you overthink your speech, you might forget what you wanted to say.
Antonyms
What does "overthink" mean? | whatsthatwordmean | whatsthatwordmean