There’s no way to prove or disprove reality! The idea that only one’s mind is sure to exist is called solipism. The world as you sense it is called the phaneron. There’s no way to know the difference between reality and your own phaneron - one has to trust that the world out there exists and that your phaneron is close to reality.
I don’t know if this is all a dream or not but I have to roll with it. So given that I go forward. So then there is my limited perception in this existence…and I say a lot of stupid shit that I change my mind on later because of growing…it’s frustrating but something I guess everyone does.
So there is no way to know everything, but in some ways that’s good because knowing everything would be boring. Learning is fun.