There is no doubt that pihole works for some people. I'm just giving my honest review: it didn't work for me. It blocked too much. I asked for guidance and got a lecture about privacy.
And I did find a solution, just not with you product :)
I spoke directly with the pihole maintainers. They took a Hardline position that them blocking email from my city was the right thing to do because it used click tracking or some other metric gathering and was deemed a privacy risk.
I understand the devotion to a cause but it was too myopic for me.
I tried pi-hole but my family couldn't make it work. Pihole blocks a lot of content they want to see, for example, email newsletters from our city gov. I understand why (privacy/tracking concerns) but it was just blocking too much and frustrating non-technical users in my house.
It's only a milestone if you make it a milestone. You don't have to participate in these made up events if you don't want to.
I'd recommend the book "a guide to the good life" by William Irvine. It may help you transform your "anhedonia" from something negative to something positive.