Just got done investigating a spambot we had earlier, and it looks like they used a lot of compromised accounts on other instances to give their post an initial upvote boost. If you don't already, please remember to use a good strong password. Keeping your account secure helps reduce spam across the whole of lemmy, and keeps your account from getting banned for things you didn't actually do.
I recommend Diceware! I use it in my professional capacity as an IT/Security person, and also you get to use your mathrocks!
EDIT: Oh, also, all that numbers and symbols shit is no longer considered good practice. Just make it a really long collection of random words, at least 12, ideally 16+ characters. And make sure the words are actually random; your 3 favorite sports teams isn't good enough, which is why I recommend diceware.
Just make one super strong password, use that to unlock you password manager and have it generate 30 character passwords for everything.
Password managers are OK but I have hesitations on them personally. I'm leery of putting all my most high-value stuff in one place behind one password. What I do instead is memorize a truly unreasonable amount of passwords, though, which I recognize is not a reasonable expectation for others. For threat models in which you're not worried about in-person attacks, it may actually be a good idea to just write your passwords down, maybe keep your password book in something with a lock on it. I'm not advocating for any particular method, just putting it out there so people can make an informed decision.
I use horse-battery-staple passwords for core stuff (unlocking my computer, bank stuff).
I use the password manager-generated passwords for everything that's in a browser.