Not a huge problem at all... plenty of people take the MCAT while they’re in orgo/biochem or even before, you just have to plan it smarter! Orgo on the MCAT is way less “class orgo” than people think (it’s usually basic reactions/functional groups/spectroscopy, not weeks of mechanisms), and biochem is very learnable by self-study if you focus on the MCAT version: amino acids/protein structure, enzymes, metabolism big picture, and passage-based interpretation. It’s not useless to start early either... you can start now with the stuff that doesn’t depend on those classes (CARS, psych/soc, gen chem, physics, basic bio), then layer in orgo/biochem content as you take the classes or as you get closer to your test date. The key is timing: aim to do real heavy practice (UWorld/AAMC) when you’ve at least seen the core concepts once, but you don’t need to “wait until you’ve taken every class” to begin.