It is a human trait that we all struggle against. Daily frustrations and problems. Hopes that are dashed. Dreams that fail. All these contribute to the dragging down of our countenance. Be brave saint. We remember that we are not of this world. Psalms 103 says we are just grass that soon withers away and is forgotten. I am approaching 70 years old. It seems the weeks are like days, and the days pass by almost unnoticed.
Yes, the same chapter says He knows our frame, that we are but dust.
Psalms 103:14-17 KJV
14. For he knoweth our frame; he remembereth that we are dust.
15. As for man, his days are as grass: as a flower of the field, so he flourisheth.
16. For the wind passeth over it, and it is gone; and the place thereof shall know it no more.
17. But the mercy of the LORD is from everlasting to everlasting upon them that fear him, and his righteousness unto children's children;
So be strong in the Lord and the power of His might. We are all but finished on this earth, and as the OP prompts, we are almost there!
Ephesians 6:10 KJV
10. Finally, my brethren, be strong in the Lord, and in the power of his might.