Do you take any nutritional supplements? Are you against taking supplements?
My first thought is flax seed oil, or better yet flaxseed meal (fresh is best, so grinding your own whole flaxseeds is optimal). Perhaps you have some in your muesli, but it will not be enough, as it will have been oxidized by the air in the container it came in.
I am sure you are not doing 3 hours of intense activity. Walking for an hour is good, and not that intense (and fresh air from outside is good for you too! Then again, if you are mall walking, that is still not intense). And teaching a kid's class is much more emotional intensity than physical perhaps
. Assisting is intense as you are a role model for everyone to learn by? That would be intense, but not for a long duration. The only thing I see as intense activity is the 1 and 1/2 hour of JKD class at 8:15 PM (that is pretty late for intense activity! especially as you are up by 7:30 AM! I am impressed! Your endurance is good). Smart that you only have a raw food bar before that activity! Your core/stomach is used so much in the training that any food you have in there will not be digested properly. The only thing better would be a smoothie that contains greens (any of the powdered "greens" would be good for your energy - wheat grass, barley grass, kamut, spirulina, chorella, etc.).
With all that wholemeal and muesli, make sure you take enough water in to hydrate those grains properly in your small intestine, so they will go through the large intestine pretty well. And I see you have the average 2 bananas a day the experts of FS say to have. And the occasional apple they like you to have also (best with the banana though, like in a smoothie). And the seed/nut butters, and have you tried tahini (sesame seed butter/paste)? Tahini also has healing properties. Sweet brown rice is another thing you might like to try instead of the breads (wheat) all the time. I cook up a big batch (3 cups) and put it in the frigerator to keep for a week or so. Just heat up what I need. I mix chopped up vegetables, and sometimes even fruit (depending if I need some energy for an exercise coming up - and rice digests pretty fast for most people).