Knowledge is Light
If you want to increase in faith, do an effort to increase in beneficial knowledge.
Knowledge brings light to the heart, and increases faith, and the best type of knowledge a believer can seek is knowledge of our Creator.
Try to better understand His names and attributes, what He likes and what He doesn't, what He commands and what He prohibits.
With this knowledge, you will find your faith gradually increases, and with that more peace will enter your heart.
So start now and pray that God increases you in knowledge.
Since I can prove the Quran says the sun orbits the earth, I am certain you will find no knowledge there.
that's the least of its problems