Please provide the rest of your question. "How do I find out if my..." is incomplete. I need the rest of the sentence to understand what you're asking. For example, are you asking:
- How do I find out if my house is haunted?
- How do I find out if my dog is sick?
- How do I find out if my credit score is good?
- How do I find out if my taxes are filed correctly?
Once you complete the question, I can give you a helpful and detailed answer.