Will I become a non-muslim if I'm a Muslim but telling everyone that I'm a non muslim?

No, simply telling others that you are a non-Muslim does not change your actual beliefs or identity as a Muslim. Your faith is a personal matter between you and your beliefs, and outwardly identifying as a non-Muslim does not change your internal beliefs. It is important to be true to yourself and your beliefs, but it is also important to be honest with others about your faith.

According to Islamic teachings, a Muslim is someone who believes in the oneness of Allah (God), the prophethood of Muhammad, and the teachings of Islam. It is a matter of faith and conviction.

If a Muslim publicly or privately declares that they are not Muslim, it is considered a form of apostasy or religious abandonment. In Islam, apostasy is a serious offense with significant consequences.

However, it is important to note that actions and statements do not automatically change a person's faith. Only Allah (God) knows the true intentions and beliefs of individuals. If a Muslim outwardly denies their faith but continues to believe in their heart, they remain a Muslim in the eyes of Allah.

Ultimately, the matter of faith and religious identity is between an individual and Allah. If a person has genuine doubts or questions about their faith, it is recommended to seek guidance from religious scholars or trusted individuals who can provide support and clarity.