I actually didn't have to fight boredoom, it was more like fighting the stark terror that it would weed ME out, LOL.
I hated Orgo I and didn't learn a thing, just passed the class. The prof. was nice enough and tried hard to make it somewhat interesting, but the school did see as a weed-out class and so did the students. Orgo II was an even worst nightmare. So, I ended up retaking it at a later date elsewhere and what a difference!!! The class was small (about 20), the professor was fantastic and I throughly enjoyed the class and got a lot out of it (not to mention an A).
As for usefulness...you really don't need the excruciating detail you are taught and tested over on the MCAT to do well in med school. You need to have the basics down, just to understand how other things work instead of always thinking "...and then a miracle happens...".
Biochem is a much higher yeld subject than Orgo, by several degrees of magnitude, and if you can take it now, by all means, do. To begin with, it is in the first year's curriculum, but you also need it for path, physio, pharm and whatever else you can think of. So hating Orgo is fine, but try to enjoy Biochem as you will see LOTS of it.
Don't worry about physics, you will not need 99% of what you are learning unless you go into a very specific field (such as nuclear medicine...).
Hating physics and orgo not just doesn't disqualify you from being a good physician but, actually, puts you in the good company of most of your future classmates