I don’t know much about your situation but here’s what I can tell you — if you do feel that you’re being overwhelmed it’s probably best if you reduced your workload or find some time and space for yourself.
School, work and marriage are all large commitments with great demands. Better to hit the MED on just 2 out of 3 than to be giving too little by spreading yourself too thin. Of course, that’s easier said than done but I’m confident you can make something happen.
Best of luck,