Natural birth or c sec

Hi mummies, I'm opting to c sec for my current birth.. both my other birth was tough.... My elder girl is 8 years n I took nearly 26 hours to gave birth... My son is 15 months old and I took 18 hours to deliver... Firstly tired because huge difference from the first n second.... Now this baby I feel like opting to c sec..... Because Im very tired n weak by body..... Do anyone experience the same.... Can someone guide me...#advicepls