Starting an appeal requires to file a Notice of Appeal.
The Third District Court of Appeal has some general information for Persons Who Do Not Have a Lawyer - https://www.3dca.flcourts.org/Resources/Pro-Se-Information This is for informational purposes only and does not substitute for legal advice.
Fourth Distrct Court of Appeal - Notice of Appeal - https://www.4dca.org/Practice-and-Procedures/Forms
PDF: https://www.4dca.org/content/download/293/file/ProSeNOA.pdf