You'll also need to request the transcript of the trial or any other critical hearing from the court reporter (the reporter's record), and request all of the relevant pleadings from the court clerk (the clerk's record), and make arrangements to pay for them. Make sure to include everything you need to show that a mistake was made by the trial court.

Get a copy of Texas Civil Appeals (The rules of appellate procedure) immediately, and look at the requirements for filing briefs, and the deadlines.

Requests for findings of fact and conclusions of law are very much recommended. The Bar has a pro bono appellate project you may wish to look into.

http://www.txcourts.gov/media/1446011/texas-rules-of-appellate-procedure-updated-with-amendments-effective-312020-with-appendices.pdf

The list of documents in your questions sounds like you have included all the necessary documents. You would file the first 4 documents with the Hood County District Clerk, and e-file the docketing statement with the Second Court of Appeals in Fort Worth, which hears appeals from Hood County. You may not be able to e-file since you are pro se, so call the Second Court to ask how to file your docketing statement. Call the Hood County District Clerk to see what you can do to file these documents, as you may need an appointment to file in person, due to the pending COVID-19 restrictions. I'm not sure you will be eligible for a court-appointed attorney in a civil appeal, because Texas law only permits court-appointed attorneys for civil appeals in cases involving termination of parental rights. Good luck.