I haven't seen a lot of datapoints for the 1 month plan (most posts are about the 2 month plan) so I thought I'd just share my experience.

I took the GRE in November 2021 (Q161/V160) and December (Q160/V158). Just retook it and got Q165/V160.

For the November test, I just studied by brute forcing all 900 math questions on Magoosh. Thinking I was so close to a 162-163, for my December test, I continued brute forcing solving more practice questions (Power Prep Plus quant on kmf, and some more Magoosh). That didn't help, and I think I was burned out trying to study/retake it after just 4 weeks.

Cue 1 month plan

Exactly 5 weeks ago (April 2022), I thought I'd just give the GRE one last shot. and try out Gregmat . It took me about a month to do ONLY the quant, because I was working full time. But I did everything that Greg assigned to us for quant. I didn't do verbal because my scores were good enough for my needs.

Lessons learned?
Strategy is so important. Knowing when to use algebra, when to back solve, when to plug in numbers, frankly when to skip questions etc. Knowing about these strategies is one thing, but actually having practice using them is way more important.

I can't believe how calm and relaxed I was during this most recent test. I was sweating during the quant in my last two attempts and running out of time, but everything was so chill today.

Anyway, thanks Greg!