TTP is great for prep on your own time!

I decided to take the GMAT in January 2021, all the while being incredibly lazy and never actually getting down to it. I needed a test prep software that was customisable, easy to use, and broke everything down to the smallest detail. TTP gave me all of those things, and I eventually prepared for about 8-12 weeks between May and August 2021. Started out with mid 600s on my practice exams, ended up with a 750.

I spent most of my time on the quant section, even though both sections were actually very well broken down. I refer specifically to how well "broken down" everything was because trying to learn everything about the GMAT in one go can be overwhelming. Mastering individual topics and question types allowed me to confidently progress in a measured, gradual way which eventually helped me be comfortable with the whole thing.