Thanks. I did take it, just waiting on scores.
I think it really comes down to what you can handle. I worked FT for the first year, and part time for the second year. It was hectic and I didn't have much free time the first year, so I made an adjustment knowing id have to be studying for the MCAT, too. It's not "slow".
Physics was the hardest course sequence for me. It took a while to grasp that actual numerical answers were less important and you needed to understand the theory. I still do not enjoy physics, even while studying for the MCAT. OChem and biochem were my absolute favorite, I may be the wrong person to ask for this...
Just go into the program knowing that nothing is handed to you. If you want to get into medical school, do your research and know (inside and out) exactly what you need to do to get there. Don't wait for someone to tell you. Start your volunteering, secure your shadowing, make relationships with your teachers and keep your grades stellar. Good luck!