Study / Completing a Master's thesis / praca magisterska in Poland [4]

Hey, I'm about to write my master's thesis in polish and I just wonder if there are on this forum people who already wrote master's thesis in polish and can share their experience with me. Formal, academic language is so much diffrent than spoken... What was the most difficult thing for you? What are the hooks? What should I avoid? Maybe you could suggest some usefull expressions? Of course, all my questions refer to polish language - I have no problems with content, NO need for ghostwriter:)

Thanks:)