I started a compost in the soil beside my house where nothing, and I mean nothing, grows. It's only been three weeks but I am hoping that soon I will see something happening. Unfortunately I'm not sure what I should be seeing. I water it once a week and have aerated it a couple of times now. I actually added a bit more vegetable scraps last week. Should I just keep adding or wait until the worms arrive? Not sure what the next step is.....