Who do I contact to help me retrieve my stuff?

[Briizie]

What is the name of your state (only U.S. law)? Oklahoma

I have been living in Norman, OK with my boyfriend for almost 2 years now, we had an argument and moved back to with my mom who lives in Oklahoma City. We decided to give it another chance and I went back with my boyfriend but my mom will not let me take my stuff and she claims I never brought anything. I have more than $3000 worth of stuff in her house which she won't even allow me to get in. The main item I want is my laptop which alone is $2000. I also have clothes and other electronics but cannot prove that the clothes are mine, I have the receipts for my laptop and electronics, so I can prove that they are mine.

Who and/or where can I get a warrant for her to allow me in the house so I can go with an officer (for my safety) to retrieve my stuff? If I have to hire a lawyer to take her to court, would it end up costing more than what I'm trying to retrieve?

Do I have any other options besides taking her to court?

Thank You