Its going to take some time but for privacy you have to work from the ground up: Only Free and Open Source Software (FOSS). You can't audit proprietary software so they can throw in a few lines of code that phone home all your info and you'd never know. This rules out iOS, MacOS, Googled Android, Windows, etc. If you're using any of those operating systems, even using Retoswap to acquire Monero with cash is very likely linked to you since your operating system sees everything that happens on it. What's the solution? For desktop you must install Linux, for new users Linux Mint is basically plug and play, very easy to use (easier than Windows after the small learning curve). I can help you with install if you reach out to me

Daedalus

For iOS/Android you already mentioned it here: GrapheneOS. Luckily this is the most user friendly step, you just buy a Pixel (preferrably a 9a or a deal on a 9 since they have 7 years of support and are quite affordable) then you go on the grapheneOS website and follow the directions with the web installer. From there you can reference my guide at

GrapheneOS Basics

to get started. After you have software you can truly trust, the best way to get non-KYC cryptocurrency is to purchase Monero from Retoswap then swap that Monero on Retoswap to a chain of your choice. You can use a Bitcoin native platform like Bisq or Vexl, but if you're buying on-chain you are linking your identity with your UTXO in the eyes of your trading peer. If they see you co-spend it with your larger UTXOs or something they can get a lot of knowledge about how much you have, and most payment methods reveal your name and some form of contact info. This can be searched on public records to find your residence which could incur a wrench attack. Monero is private by default meaning that if you purchase with Zelle on Retoswap, only the trading partner knows that your name purchased so and so Monero. They have no idea if you're holding or spending immediately. In-fact the spending culture on Monero is extremely strong such that most assume you're buying to spend. Thirdly you can use Robosats to purchase lightning with fiat non-KYC, but unless you're running your own node, your privacy on Lightning is almost certainly worse than on-chain to your LSP or Custodian making it a soft KYC method. You gain the same level of privacy from your peer as you do with Monero however. Overall this is a lot at first, but in terms of keeping your private details, including financial, truly yours, the privacy journey MUST be embarked upon. It will take some time but all technical things sound way harder before you start trying, then you're surprised you didn't try earlier. There's really not much else that's more important save for God, family and friends, and privacy even protects your family and friends so its important there too. Once again please reach out at

Daedalus

I'm a privacy maximalist and a specialist in onboarding people. I've helped my wife and many friends get set up on GrapheneOS, Monero, etc.