Apologies up front if I sound a little brusk. I'm mostly finished with a nice bottle of minervois.
So, let me get this straight. You don't really know anything about physics or chemistry and you want to start preparing for the MCAT. Since your baseline is more or less zero in those subjects, a review book is not going to help you. Review books are for reviewing, not learning. It sounds like you need to learn the material again since, as you put it, you're starting from scratch. The same thing is true for a review course - review courses aren't going to take you from scratch and bring you up to speed. If you don't know the material, review courses are a waste of money and time.
From what it sounds like, you basically need to teach those two subjects to yourself. That sort of thing is doable, but it takes a lot of discipline. My advice would be to pick up a copy of these:
Amazon product ASIN 0071754873
Amazon product ASIN 0070537097
For self-teaching basic sciences, there is no substitute for Schaum's Outlines. I have no idea why more people on this forum are unaware of them. Scores of worked problems, examples, and solutions. Buy the books and work every problem in them and in six months you'll be where you need to be. Once you've done that, you're probably in a position to start reviewing for the MCAT.
Something else I should point out. If you don't remember any basic chemistry or physics, I'm curious as to why you seem to think you're prepared for organic. The BR organic chemistry books are pretty realistic for what you'll see on the MCAT. The sections on nitrogenous compounds and some of the NMR is probably a little bit more extreme than the real exam, but beyond that, it's pretty accurate. It sounds to me like you really need to go back and learn the material again.
Now, you probably won't listen to me. You'll most likely decide to use review materials, try to figure it out, and ultimately take the MCAT unprepared, wind up with a mediocre score, and be stuck trying to figure out what the hell to do with your life. There are some hard yards ahead of you and if you're willing to do the work, you can do well. But the easy road is paved with daggers.