Hello, I’m new here!
I’m planning on investing a portion of my money into Bitcoin. I’d like this to be a long term investment and want to do it “the right way” first. I’ve asked this in a Bitcoin chat and this is my current refined list:

1. Purchase a Cold Card.
2. Host a personal Bitcoin node (Umbrel?)
3. Buy Bitcoin with Bisq on TAILS via a Postal Mail Order.
4. Do a Coinjoin on the purchased Bitcoin (considering an XMR tumbler instead?)
5. Verify everything works by re-using seed and adding a small amount of BTC to the wallet.
6. Use a metal seed plate and backup the Cold Card seed. (Using a 25th word for seed).
7. Have a view-only wallet on any internet connected devices, using Tor to connect to the node. (Bluewallet, Electrum.)
8. Stretch goal: Host my own Lightning Node. (Umbrel?) Not sure I’ll have the liquidity…
   Anything I’m doing terribly wrong? Thanks for any help!