The trick is to find a job (or a few part-time jobs) that are conducive to paying in non-KYC Bitcoin.
For instance, there is the option of powerwashing people's driveways/sidewalks. Buy a $200 powerwasher from Home Depot. Charge customers x fiat per hour. Offer them a 25% discount if they pay in Bitcoin.
Some will pay in fiat and some will pay in Bitcoin. Spend the fiat on gas/food/etc, and save the Bitcoin. Be prepared to explain how to buy Bitcoin. And have a Boomer-friendly explanation for why you want Bitcoin.
If you're into to cleaning and orange-pilling boomers, then this might be worth trying. You can do this for a few hours each weekend while working a regular 9-to-5 job.