How can tribulations be remedied, including infatuation with women and doubt in religion?

Feeling doubt in religion is one of the nullifiers of faith and a sign of the hypocrites. What comes to mind might be a whisper [from Satan] rather than doubt, and the sign of that is the dislike, fear, and aversion towards such thoughts. This has been explained previously in earlier fatwas. The proofs and evidences for the truthfulness of Islam and that it is the true religion have also been previously explained in several fatwas.