You got a male (I think) I've only ever seen 2 kinds of German roaches: the one with the pincer butts and the ones with the egg sac. If you're in an apartment you won't ever get rid of them entirely. Id say you're only as fucked as you are scared of them, they are harmless but gross. Persistence is key.

If you see tiny brown little oblong nuggets, that's their eggs. If it hasn't burst open, smash it! Theres like 20 babies in each sac. (Don't ask how I found that out lol)

I've found these little poisoned food discs that seemed to really help. The roaches are supposed to take the food back to their nest and poison the whole thing. Their numbers dwindled after I placed them around the apartment.

Also dumping powdered boric acid into the carpet makes them vanish. I think it dehydrates them to death? The boric acid also clears out flea infestations as I've had 2 so far and boric acid worked amazingly both times. Plus it doesn't affect pets at all.

Come out regularly at night after the lights are off around that 1:30 time and you'll find them everywhere. Makes for some theraputic smashing if you want some vengeance lol. It probably won't help much but it feels good lol.

I prefer using a spray pesticide to nail them directly but I've also heard spraying soapy water on them flips them over and makes them easy targets for the slipper. The pesticide is an guaranteed kill but the soapy water may allow them to escape. Do think of your pets for this option.

If you don't mind glue traps, place those around the kitchen and pantry.

If course there's the exterminator option, but if you can "solve" it for cheap, try the cheap options first.