It's really fundamentally unimportant what you specifically believe. What is important is what people your age in the aggregate believe. This is an undeniable truth. It's therefore silly to engage in a conversation about you and your beliefs specifically. I recommend trying to understand Plato's ideas first.

> This is an undeniable truth.

Well, I disagree. What evidence do you have to demonstrate that a) this is true and b) it's so unassailable that one could not deny it?

Because it sure reads like, "I have a worldview. I will assert that it is true and talk down to anyone who does not accept my worldview as truth." It's a way to paint your discussion partner as an intellectual lesser, while adroitly dodging critique. You'll have to do better than just asserting something is true because you said so.