transitive + intransitive
: to think too much about (something) : to put too much time into thinking about or analyzing (something) in a way that is more harmful than helpful
overthink a situation/problem someone who overthinks and worries too much "I was a terrible actor when I went to New York. I was scared. I would overprepare, sometimes overthink a role."—Paul Newman For a while now, I've been finding current fiction hard to read: airlessly competent, relentlessly put-together, overthought.—David Gates
But the problem is I'm an overthinker. I contemplate and consider, deliberate and debate things small and large in my life. Simple things become complicated and easy decisions become complex.