When we are stuck, unable to make a decision, going over all the facts again, all the pros and cons, doesn't change anything. That would be like performing the same task again and expecting a different result. 

Instead, what helps are questions. 

Questions that are directed at propelling us forward. 

Questions that help us realise what additional information to seek out, questions that force us to consider specific trade-offs.

These help bring new perspective to the situation and get us unblocked.

If you're stuck and unable to make a decision, ask more questions.