Difficult decisions are mostly about weighing the long and short term values. Making objective decisions is difficult because we are biased towards short-term rewards and pre-existing beliefs.

As you make more decisions (especially difficult ones), and as you consider more options, you start to get mentally tired making your subsequent decisions worse and more difficult.

An excess of options will also increase your likelihood to avoid making a decision entirely.

The more you struggle with difficult decisions, the less distance from them you enjoy and the more bogged down you can become.

And yet, psychological distance provides a sense of perspective that is a key component of effective decision-making.