Start by editing for content. You can also include the subtitle. FIVE pages long? That is a common fact; you can find it stated in numerous trustworthy sources. This is how you can achieve quality research. After that, you need to link the remaining ones. Did I avoid using contractions? Right now, you just need to write.
Proofread final paper carefully for spelling, punctuation, missing or duplicated words. A thesis needs to be definitive, and should not be about you. Varying lengths of sentences?
Check copyright dates, materials older than five years may not be suitable for certain topics. Another way to check whether or not your statement is arguable: Is Pride and Prejudice a book?