I would say it's worth it! Pure anonymity is unachievable, it's more about putting as much roadblock on the way as possible.

Like.. making yourself harder to find by another guy. Not allowing big tech to have your data in an arms reach.

Treat privacy like a fun game, go as far and as slow as you like. It's totally fine to take a break and do more once you're motivated to do so.

most of us who are interested in "privacy" could have written what you wrote. Here, we, of course, would say "yes, it's worth pursuing". For a great majority it's "i don't care" (so don't ask them ;)

i remember how internet was before cookies and how life was before smartphones. I really can't understand today's popular carelessness around intimacy, privacy, personal information &c

don't give up. I was alone on signal at first, then we were two. Now most of my contacts are in signal (knowing how difficult this move was, i don't get into the discussions about session &c. Getting people off facebook is enough for a first step.

DeGoogling is so much of a hassle, i don't expect it to be of interest to general public

I started my journey to degoogle myself very recently. I'm still to make the transition from Google stuff, but for now I treat it two fold.

1. I treat it as a side hobby - I know it would be more convenient to just stay under the Google umbrella, but I'm interested in the state of FOSS and how far you can replicate gtools. I'm waiting for my Synology NAS drive and hopefully this will cover most of my needs.
2. A personal statement/protest against greedy companies - I know that cutting access to some of my data (I'm not disillusioned - I know they still have a lot of my data and they will still have access to some) won't make a difference, but by switching from WhatsApp to Signal, I created a conversation among my friends and family. They became a bit more aware of the current situation. Same with switching from Reddit to Lemmy. The further I travel on my path, the more people around me are interested in their own privacy.

So if you are realistic about it, as you are judging from your post, I would say it's worth - even if just as a middle finger to the big, privacy violating conglomerates. We shouldn't just roll over and give up our personal lives.

Also, you will have full deniability of any future repercussions of people allowing big corpos doing with their data whatever they want.