Most people carry the bulk of their stress in their neck, shoulders and jaw. These are usually the last areas in the body to fully relax.
Next time, I would try either some stretching exercises, like yoga or maybe some intense exercises like aerobics or weight-lifting. Something to really wear-out the body. (You may need to grab a shower afterwards
) but when you are done, lie down and let your muscles finally relax and let go. When the muscles have just gone through a rigorous work-out, they are ready and willing to take a break. I think this really helps facilitate total body relaxation while in the shortest amount of time. The mind is usually quite calm after the work out and more easily focused.
Hope this helps!
Next time, I would try either some stretching exercises, like yoga or maybe some intense exercises like aerobics or weight-lifting. Something to really wear-out the body. (You may need to grab a shower afterwards

Hope this helps!