I don't know about Germany, but small claims courts (where this level of damages would belong) are really quite accessible. Hiring a lawyer for one is overkill.

If you can get to a public library, you have internet.

Not everything is an intractable problem, though I'll agree that avocado on toast is an unlikely reason to not be able to buy a house (though is a reasonable hyperbole for "bad financial planning", if rather insultingly dismissive).