Breastfeeding is tiring

Hi mummies. Ftm here. I am breastfeeding as well as pumping as I have rather more than enough milk supply. My qns is how do you have enough energy to keep you through the day and night? Any supplement or jamu or herbal to up the energy level? I find myself getting exhausted after every feeding and pumping and resorted to sweet drinks and sweet snacks. Very unhealthy. I do drink lots of water but I find myself yearning for sweet food to boost my energy. Any supplements or jamu to share will be greatly appreciated as I would love to purchase ASAP ☺️