Don't worry about what others are doing so long as you know your own limits.
I started studying for my Sept 12 MCAT on July 7th. That gave me a little over 2 months to study. I thought I was super behind because I started so late, so I vowed to invest at least 8-12 hours a day. This worked for maybe about a week. After that, I slowly declined until I was barely studying for 4 hours a day. Around a month later (August), I realized how much I was slacking and picked up my pace again. I started taking practice tests about 2 weeks before my exam. I went through AAMC 3, 7,8,9,10,11 during that period and scored an average of 33.5 on my exams. I didn't feel prepared for my exam at all; in fact, I was expecting a score from 32-35 at best. Either way, I knew that I would perform differently under the adrenaline rush during the real MCAT, so I went into my test confidently and performed to the best of my ability. Though I ended up making some really dumb mistakes (and I knew it right after I finished the section too), I didn't let that influence my future sections. I ended up scoring a 37 on the real exam, which was 4 points higher than my practice exam average and higher than any score I received on a practice exam.
Moral of the story? Don't worry if you're not studying X amount of hours a day. Focus on learning the material and try to become familiar with your intellectual limits. For example, I knew that if I took all my practice tests right before the real exam, I'd adopt the test-taking mindset for the real exam (meaning I would have a good intuition) and I was right. That's because I knew what strategy worked best for me. Reference your past finals, SATs, etc to get a feel for how you study best for these things and follow the strategy that works for you.