It is often missed, but should be underscored: Paul needed the prayers of others (II Cor. 1:8-11). He was “despairing even of life.” At another low moment, he greatly benefited from the encouragement of Titus (II Cor. 7:6).
I have often shared the following to Christians who are so deeply troubled they can’t even muster the motivation to pray: Don’t worry. Simply ask others to pray for you. Give us the privilege of holding you up. You may need to return the favor someday!