When to Consult Divination

You're stuck in the decision-making process and want help thinking through it from a different angle.
You need to sort out your thoughts. Divination is good for breaking out of a circular thought process and approaching it in a different way.
You want something to focus and reflect on for the coming day/month/chapter in your life.
You need a second opinion on something spiritual.
You want something to aid your planning process by suggesting steps and strategies
You want advice for how to tackle a situation.

When NOT to Consult Divination

You're fishing for a specific answer and just want something to validate you. Your bias WILL get in the way of the truth.
You want very specific details about a future that hasn't happened yet. (What will my husband be like? When will I meet him? How many kids will I have?)
You want to know what someone is thinking/feeling/hiding. Literally just communicate with them.
Asking if you should break up with someone. It's like Googling "am I gay quiz." If you're at this point you already know the answer.