Or a week deciding whether to accept a job offer. Or a year deciding whether to marry your partner.
Enough, you might tell yourself. Just make a decision. And you do.
But within minutes, that stream of doubts and insecurities starts leaking - and eventually gushing - though the mental fortress you've built up around them.
Everyone's been there - and everyone has their own tricks for avoiding the situation. We checked out the Quora thread, "How do I deal with overthinking?" where many people have shared those tricks, and highlighted the most creative responses.
Read on to find out how to clear your head once and for all.