I’ve had bad experiences with melatonin, but now I find it can be helpful in smaller doses. I cycle through a bedtime thc/CBD/melatonin sleep aid (Wonder Wellness Sleep), L-theanine, and melatonin, only taking one for tops a week at a time. That rotation seems to help.
I radially dice my onion. To me it seems like the horizontal and vertical cuts leave more uneven bits considering the layers already present. I angle my “vertical” cuts towards the center, then start chopping.