For we are not saved by believing in our own salvation, nor by believing anything whatsoever about ourselves. We are saved by what we believe about the Son of God and His righteousness. The gospel believed saves; not the believing in our own faith.
Often we comfort ourselves only with words, but if we pray enough, the conviction will come too that Christ is our King, not Stalin, Bevins, or Truman. That He has all things in His hands, that 'all things work together for good for those that love Him.