I'm no expert in account security by any means. I keep my personal accounts reasonably secure with 2FA and LastPass. However, if you'd like to gain access to my PlayStation account, then I can offer you advice on what not to do:
Yes, those are repeated emails from someone attempting to breach my PlayStation account via the "Forgot Password" form. No, I haven't changed my password - because they clearly haven't gotten that far in the account breaching process.
Here's the kicker - they aren't even trying to breach the PlayStation account that I use on my PS4. There is not a single game or piece of identifiable personal information on this one.