You don’t need to speak with someone who’s knowledgeable on the topic. 

You just need a good listener who’ll give you time and space to hear out your monologue and occasionally reflect back to you what you’ve shared.

Asking someone else for their opinion typically works best when you’re considering doing something that you’ve never done before, and when you know someone who’s experienced in that domain. 

In some cases, you can test out a decision before actually making it.

For example, consider visiting a new city to see how it feels to you, before taking that job that would require you to relocate.

When you’re really struggling with a decision, it’s often because your mind thinks one thing is practical while your heart wants something else.

We’re not purely rational creatures. It’s ok to listen to your hopes because they often give you deeper insight into the decisions you actually want to make.