I think being unreliable is not accurate. I'm doing the whole password manager thing in what can be only described as the most unreliable way, by self hosting it, and so far I literally haven't had any downtime (touch wood).

Even with LastPass being compromised, the database itself was still encrypted and the only way in would be to guess your master password. If you have even a half decent master password, that should be plenty of time for you to have both changed your passwords, and ideally changed password managers at that point.

I really don't agree with recommending just remembering passwords in your head, because we're all human and we're bound to be lazy and start reusing passwords for certain services. And sometimes, you might have no choice but to be signed up to all different things. Even just the bare essentials for me would be email, my bank account, my superannuation, my local government account, my work password, my laptop password. That's too many passwords for me to keep track of and I know that.

If I were you, based on what you're saying, I'd probably recommend to you a local password manager that just uses a local vault, like KeePass-compatible managers, because you're entirely managing where your passwords are and how securely they're stored, and they're not open to the internet. I used to have this setup, but found it ultimately difficult to keep the database in sync on all my different devices (2 laptops, desktop, 2 phones, and tablet).