Dear Socrates25,
Getting licensed in Texas is indeed a huge pain... they lose stuff all the times and make mistakes, so get ready for a ride. It takes an enormous amount of time to get licensed and it is just ridiculous.
For the Texas Jurisprudence exam, I used texasjurisprudenceprep online course. I studied about 3-4 hours every day for 5 days and I tool the exam and scored 94% on the first attempt. It is all you need. The exam is not difficult if you go through the material and study it. The online course has everything you need to pass but it is more pricey than if you buy a book. The advantage is that it has quizzes online and those questions prepare you well for the exam. I hope this helps.