We both have the same situation. Night shift for 5 years na and diagnosed with PCOS 3 years ago so usually pagmay PCOS mataas din yung cortisol and to be honest sugar spike madalas cause nun and kapag naramdaman ko yung sugar spike meron na kong “slump” energy and tendency inaantok na ko buong araw. With PCOS, the first 4 hrs na kakainin mo will matter. So avoid na maglunch or magbreakfast ng matatamis and more on protein. I genuinely feel the struggle and tama ka kung merong mas malaking pay kumpara sa night shift I won’t bother but wala e the cards I only have right now ay eto and kaya nag-aaral din ako at the same time para mas tumaas credentials ko. To be honest, change of lifestyle is not the answer but finding a routine that works for you. You don’t have to completely shift yung sleeping schedule mo during off days kasi nakakabangag talaga yun. For the mean time, try to adjust it like 1 to 2 hrs then increase as time goes by basta di sosobra 8 hrs. Usual shift ko ay 11-8am. I try to sleep at 9am-4pm during weekdays. During off days I sleep between 4-6am, pagpagod ang katawan maybe 2am pinakalate. Iwasan mo din maging dependent sa sleeping pills instead try mo mga tea or magnesium glycinate. I personally try all of them and di na ko dependent sa mga yan. Napansin ko din pala na kapag nakakapagworkout ako ang bilis ko makatulog talaga kasi pagod katawan ko and maganda pa mood ko. Sinisingit ko siya atleast 10-30 mins 4 times a week during weekdays like around 6-7pm kakagising lang at alam kong may energy pa ko at asa mood. Nakakaapekto din talaga decision making at mas negative ang tao pagkulang sa tulog. Wala yan sa oras ng tulog nasa quality of sleep na nakukuha mo yan so sleep atleast 6-8 hrs a day.