No Account Password?

So I'm trying to keep my account signed in so that I don't have to sign in every time, but when I tried to actually sign in without pressing the Sign in with Google button, I realized none of my potential passwords worked. I then went to my account settings to attempt to change my password, and there wasn't even an option. I am very confused and I don't know how to fix this. My account basically has no password. Does anyone know how to fix this?