Short answer

Look into it properly, and start now. Being unsure is an honest place to begin, but it is too big a question to leave open. Putting it off is also a choice, and if God (﷾) is real you will have chosen without looking. Looking costs little. Read the reasons, test the claims, and ask for guidance in your own words. Islam says the same. In the Qur'an a believer at Pharaoh's court reasons about a messenger. If he is lying, the lie is on him. If he is truthful, some of what he warns of will fall on them. The Qur'an also promises guidance to those who make the effort (29:69).

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