I spent the first few weeks of my GRE preparation switching between different books, videos, and study plans, but I still wasn't sure if I was making real progress. Feeling frustrated, I decided to try a GRE tutoring service to bring more structure to my preparation. Having a clear study schedule, regular feedback, and focused practice on my weak areas made my sessions much more productive. Instead of studying longer, I started studying smarter, and my confidence improved with every practice test. Has anyone else used a GRE tutoring service, and what part of it made the biggest difference in your preparation?