I get that AV software could be seen by many as cheap insurance, like oil changes. Unfortunately, it's not true anymore. Many, no nowadays most malware is specifically made and tested to evade common av solutions.
I'm with jinjuku on this one, windows defender which comes free with win10 is a major step above security essentials.
In addition, I'm also using OpenDns, pihole, ublock origin and keeping sure my windows and other software are updated.
Additional steps like removing local admin rights from the account you use daily is not a bad idea. Having backups of your crucial data is a must.
With these systematic measures, you'd be better protected than any single av product could realistically do.
Most importantly, don't open shady attachments and don't click to install "video software required" to play a video online. 10/10 its malware.