The trick is to go very slow and don’t take off a lot of hair at first. You can always go back and cut off more hair, but you can’t put it back on. The trimmer I’m using is from Brio and the attachments it comes with are perfect for this type of self haircut. I’ve talked about the Brio trimmer before and it’s proving to be a very versatile grooming tool to own. Especially right now during quarantine. Be sure to watch the video I linked up above to see exactly how I do it.