I dont know how to take my pill

Okay so I have PCOS and I haven't gone to my gynecologist for a while and I stopped taking my meds so when I went to my GP he wrote me a script to get the pill and my other meds I'm 8days late Nd I'm not sure on what day I should start my pill... I come from a very conservative family so even I I have questions they brush past it... plus it's very Christiany so all the older folk say dont take the meds pray and God will heal you šŸ™ˆšŸ™ˆšŸ™ˆ... so if anyone could be kind enough to explain how I should start taking the pill or just start a new cycle šŸ¤·šŸ¾ā€ā™€ļø