Hello around,
I need some advise from the pros here. Need hints, links, info and pros and cons for my plans for the defending of my digital life. I'm heading to the full armor package possible, step by step. I want to take myself out of this toxic-system, but being part of its non-toxic side again.

First: the Reason.
As an anticapitalist, I dont want to be part of the constant advertising-data-stream that comes from a stock-device, a phone number or anything.
As a citizen I dont want to be left behind vulnerable to the authorities, even if I'm not doing anything against the law.
As a user, I want to have peace of mind and the feeling, that I'm not being a needy and dumb product.

My plan is to reduce everything on everything, somekind of going "dark". The 100% variant is to get rid of all that stuff, i.e. ISP contract, Phone (SIM-Card), Bank-Account. But obvisually its not really possible without being soon the homeless guy at the next corner, begging for something to eat. I have a job, and need all that stuff, despite the fact that I dont want to.

The steps I can think of are:

1) Use a custom, non-stock Operating System for the phone
-> done. I'm using GOS on a Pixel 8.

2) Not using Windows for desktop
-> done. Using linux, sometimes tails from a stick.

3) Find a way to send anonymous money, i.g. prepaid-credit-card, digital-coin wallets.

4) Find a anonymous way to use a Sim Card for the phone, that is not linked in any way to a real bank-account, or anything?

What would you guys do, to achieve point 3?
And what, to achieve point 4?

What I've tried to achieve by myself:

Prepaid Credit Card (only for online transactions, e.g. buying eSim). There are some companies that give a virtual credit card, but all of them require a real telephone number to register, and real data, like adress and name. I dont want to do that. I remember I was using wirecard once where I had virtual card-details to use for online transactions and it was functioning. I could easily send money to it from my real bank-account. It was prepaid. Unfortunately I was not able to find any similar to this these days, where I can make an account with fake-data.

To get rid of my real physical Sim-Card and only using a eSim with data and voice-calls, I need a service where I can buy anonymous eSims, also as a prepaid-thing with 30 days of service which I could extend to another 30 days. But I couldnt find any and dont want to be trapped by some ass-companies and/or illegal providers with hidden agendas. Don't know at all.

At least I'm not very educated in this bit-coin thing. Would you prefer using etherna, bitcoin and which wallet would you use? And hows the environment set up for making transactions over it? What is important in a privacy environment? Going to an internet-cafe? From home? It is anonymous and not linked to my ISP or anything?

Any help would be highly appreciated!

Thanks in advance,
Uschi