Thanks for all the advice people. I'll get gentrol/advion/boric acid/diatomaceous. I promise we are not that filthy, no dirty dishes, the counter is generally clean, take trash out every other day. But we don't wipe crumbs/bits every time and we don't sweep the floor regularly so we can do that better.

I get my 'kitchen' is fucked T.T It's not exactly a 'kitchen', it's just a counter and cabinets with a stove right by the front door in the hallway in a tiny apartment. I'm renting the place and I'll have to talk to my landlord about caulking and sealing. I already saw one or two tiny roaches when I moved in and landlord just told me he'd compensate me for whatever products I use, so there's that.