teen–there is a difference between believing and knowing. Believing brings you to a place where one acts based on what they believe. For example, a person that believes in Olam Haba will act and behave differently then someone who doesn’t believe in Olam Haba—that has nothing to do with the fact that their neshamos will go there–the Heavenly Court will convene no matter what. Belief is something that is a choice that brings people to action. You are doing the right thing by asking the questions and genuinely looking for answers so you can work on your belief system.
Knowing is generally relating with things one can see right in front of them. We’re human and bound by space and time and can therefore not know Hashem. But working on believing in Him and all He does (past present and future) brings great joy essentially….continue with your questions and persevere in finding the Torah true answers!
p.s. It’s a lot more sensible for a human being to believe a claim of 3 million people than a claim of 1 person (i.e. Matan Torah-veracity of Klal Yisroel and Hashem’s running the world vs. lehavdil the claim of one person’s so called revelation)