Thanks for the documentation. I'm checking it out rn.
How to keep my DCA going on when migrating to a cold/paper wallet ?
Actually its more better to go Hardware wallet which is still the best option for cold wallet and i will advice you to go for Trezor hardware wallet, this thread will be helpful in your choice of picking though
55 Hardware Wallets, compared feature by featureDo i still have to buy through a CEX manually every week ?
Actually this is up to you, though there are Decentralise exchanges like peachbitcoin.com and others you can find here
https://kycnot.me/