This actually can be somewhat handled to reduce stress with this and other of your seeming problems. Take a single edge axe, long handled is better than a hatchet and without harming yourself whack it at just below ground level. Note this is not the best thing to do for an axe but trust me it feels good. Sometimes a mantra helps too: Something like durn neighbor, durn neighbor, durn neighbor, (if silent you can make it even more personal) while you’re swinging. Honestly it will keep it on the other side of the fence and each cane should only need a few wracks over the next month.