Either you keep living this way — and that's what you've grown used to, so you can handle it. Or you retire and leave the world on your own terms — and then you get what you want. Or your life gets cut short — and then you can be glad you finished your duty. One of these things has to happen. So take comfort in that.
Either thou dost Continue in this kind of life and that is it, which so long thou hast been used unto and therefore tolerable: or thou doest retire, or leave the world, and that of thine own accord, and then thou hast thy mind: or thy life is cut off; and then mayst thou rejoice that thou hast ended thy charge. One of these must needs be. Be therefore of good comfort.