A fantastic quick bang for buck is to download NextDNS. You can use premade domain filters so you don't need to keep adding as much to your deny list. They have a "no Google" filter that automatically gets much of that crap, a "No Facebook" to block all those domains and more. It's not hard to use and doesn't take long to figure out. Just set it up by putting a DNS link in your phone and start checking logs. You're going to be so pissed when you see them.
If those logs don't motivate you, I don't know what will.