I likely have 50 relays in my shop, one machine with 12 or more, many that I built to control 3 phase machines, many with multiple delay timers to reduce current inrush. All in boxes, and all 30 years in the works, without any issues.
But You are not stupid at all, you are just overthinking a very simple situation. Save it for something important. how about 2 of these twist timers?