More from Jeffrey R. Holland. He says this so much better than I can!
In preventing illness whenever possible, watch for the stress indicators in yourself and in others you may be able to help. As with your automobile, be alert to rising temperatures, excessive speed, or a tank low on fuel. When you face “depletion depression,” make the requisite adjustments. Fatigue is the common enemy of us all—so slow down, rest up, replenish, and refill. Physicians promise us that if we do not take time to be well, we most assuredly will take time later on to be ill.
If things continue to be debilitating, seek the advice of reputable people with certified training, professional skills, and good values.
If you are the one afflicted or a caregiver to such, try not to be overwhelmed with the size of your task. Don’t assume you can fix everything, but fix what you can. If those are only small victories, be grateful for them and be patient. Dozens of times in the scriptures, the Lord commands someone to “stand still” or “be still”—and wait. Patiently enduring some things is part of our mortal education.
For caregivers, in your devoted effort to assist with another’s health, do not destroy your own. In all these things be wise. Do not run faster than you have strength. Whatever else you may or may not be able to provide, you can offer your prayers and you can give “love unfeigned.”
Also let us remember that through any illness or difficult challenge, there is still much in life to be hopeful about and grateful for. We are infinitely more than our limitations or our afflictions!
Just for today, "try not to be overwhelmed." And take a 15 minute break.