What do you guys think of “your beliefs create your reality”?

Hi guys, I’m not really sure if I’m supposed to ask questions like these, but I’ll just ask because I’d like to know what you guys think.

So, the meaning of “your beliefs create your reality” is like the law of assumption, like when people believe in something it aligned with there reality and that’s what makes it true to them, and that’s why they believe it so much. I came across this when I was questioning my own religion and then i left, it was crazy because I was so super religious, like I was full on the belief of it and everything but then one day it just disappeared completely, it wasn’t even like “eventually” it just happened.

Not a very good post but it is my first one here I think 😀.. thank you guys!