2.You should install and update the antivirus you have on your PC.
This isn't bad advice, but you didn't mention something very important - not every AV is the same, some do their job well, and some do it very poorly, and in the process they also spy on you and sell your data. When it comes to updates, you probably mean regularly downloading antivirus definitions, but every AV does this automatically, just as the version of the AV software itself can be automatically upgraded.
4.Always check for emails that gives a sense of urgency to take a quick action.
There is a catch in this, because hackers can create exactly such e-mails that appear to be urgent and may appear to come from a legitimate source. Quick action can sometimes be a thoughtless action that has very bad consequences.
6.Also remember to scan for malware regularly on your computer
Prevention is what's important, because if you prevent viruses and malware from entering your system, then you don't need to check if your device is infected. If you scan your computer and find malware, the damage has probably already been done.
7.Use strong passwords and passkeys. Also apply 2 factor authentication.
Strong, yet unique passwords are very important - because one strong password for everything is a risk if someone manages to get hold of it. To some, it seems like an impossible mission considering that they have hundreds of different accounts, but this is exactly what hackers are counting on, to be careless and think that bad things are happening to other people.