Hey all, a question about resources for dad's going through custody fights.

A brief synopsis:

My ex and I have a Stipulation on our decree of divorce stating that my time during the school year is on weekends. This is the one verbiage regarding my parent time. They are now attempting to argue that because of this, I have no winter/fall holidays. Every attorney I've contacted has been adamant that this is not accurate, that they are just attempting to take advantage of me because I don't currently have an attorney, and that my holidays are my right still.

I'm trying to find resources to help me afford legal representation so that I can enforce my parent time. All Google searches are referring me to either ad companies or assistance that I do not qualify for (most of it is for new divorce cases) . Are there any resources I should try and contact? Any help with steps would be appreciated.