How can one overcome doubts about the existence of God and the truthfulness of the Prophet, especially with reasons for these doubts relating to errors in religious education, the idealism of religion, the absence of conclusive proof, the loss of trust in Muslim scholars, and the possibility of distortion of religious content throughout history?

What the questioner learned in childhood regarding errors does not negate the existence of irrefutable evidence for God's existence. Human nature, while beneficial, is not sufficient on its own to establish ethics and values that atheism denies. Doubts about God's existence are not considered logical, and lack of knowledge does not mean lack of existence. Tribulation is the wisdom of creation, and it does not mean that faith is not based on sound proof. Belief in God is based on sound logic, whereas atheism offers no proof for God's non-existence, but rather claims that the evidence for His existence is insufficient. As for losing trust in Muslim scholars because they do not entertain doubts, this is incorrect; some of them have not been exposed to suspicion and their certainty is complete, some have repelled doubt with their knowledge, and some have rid themselves of it through sincere research. The passage of time does not invalidate the transmission of the Qur'an, which is transmitted verbatim, in performance, and in writing, as well as the authentically transmitted Sunnah (definition). The Qur'an alone is sufficient to establish proof in the fundamentals of religion and to prove God's existence. The possibility of the Qur'an being distorted by introducing a verse about its infallibility is not plausible, as indicated in point five.