Moroni 9:25

My son, be faithful in Christ; and may not the things which I have written grieve thee, to weigh thee down unto death; but may Christ lift thee up, and may his sufferings and death, and the showing his body unto our fathers, and his mercy and long-suffering, and the hope of his glory and of eternal life, rest in your mind forever.

The bleak events of the world can weigh us down and overwhelm us. But they do not have to crush us. Christ can lift us, strengthen us, and comfort us, even in the midst of turmoil.

4 Nephi 1:1

And it came to pass that the thirty and fourth year passed away, and also the thirty and fifth, and behold the disciples of Jesus had formed a church of Christ in all the lands round about. And as many as did come unto them, and did truly repent of their sins, were baptized in the name of Jesus; and they did also receive the Holy Ghost.

A natural outcome when a group of people share a belief is to organize and come together to strengthen one another in that shared belief. This is church in its simplest form.

3 Nephi 13:34

Take therefore no thought for the morrow, for the morrow shall take thought for the things of itself. Sufficient is the day unto the evil thereof.

Each day contains enough evil and temptation to keep our attention fully occupied without worrying about tomorrow's possible trials and afflictions. We are not to put our heads in the sand, but we are to get the most we can out of the day at hand. We have many opportunities each day to serve and do good. We must put everything we've got into making today the best day possible and don't leave any chips on the table. God gave us our strength for this day, and he will give us strength for the next day when it comes. One day at a time is all we can do.

Alma 53:20

And they were all young men, and they were exceedingly valiant for courage, and also for strength and activity; but behold, this was not all—they were men who were true at all times in whatsoever thing they were entrusted.

Youth, courage and strength are important, but obedience was the greatest trait of the stripling warriors. Through obedience, weak things become strong. If we want more strength, we must find a way to be more obedient.

Alma 49:2

And behold, the city had been rebuilt, and Moroni had stationed an army by the borders of the city, and they had cast up dirt round about to shield them from the arrows and the stones of the Lamanites; for behold, they fought with stones and with arrows.

The "war chapters" of Alma are rich with metaphors. In this case Moroni used wisdom in strengthening the weakest cities. We should likewise recognize our weaknesses and try to strengthen ourselves in these areas. Satan certainly knows our weaknesses, and he will strike us first in our most vulnerable spots. If he succeeds once, he will keep picking at that scab. He may win a battle, but if we are wise and seek God's strength to shore up our weaknesses, Satan will not win the war. Properly prepared and defended, we can turn away his attacks and disappoint him.

Alma 14:26

And Alma cried, saying: How long shall we suffer these great afflictions, O Lord? O Lord, give us strength according to our faith which is in Christ, even unto deliverance. And they broke the cords with which they were bound; and when the people saw this, they began to flee, for the fear of destruction had come upon them.

The help and strength we receive from God is in direct proportion to our faith. This is because our faith moves us to action. The bigger our faith, the bigger our actions, and thus the more help we need and the more strength we will use.  God gives us all we can handle, and strong faith enables us to handle heavy things.