years? sorry to hear that. thats a long time.... im broke too now. i dont even work because i have chronic fatigue anxiety and a very strong brain fog that makes me look like a zombie lol.
but your right its the scattered ones hiding in the extremities like the head and legs/arms that keep spawning new adults over and over. i kill the adults then new larvae grows again and again.
save some cash(wherever you can get it) and buy valbazen and stay on it till the larvae is dead. I ask myself the same question all the time... when will they die?