Well, here is how I see it, you can't quit your job or school, so that leaves one option, dump the wife and the rest will fall into place. (just kiding) But seroiusly you have alote on your plate and I lift my hat off to you. But as you said you need to cut back on something because if your starting to burnout trust me its best to loose 1 thing than to crash and loose everything, but I'm sure you've thought about it and there's nothing you think that can be given up and if thats really the case well suck it up and good luck.