Exhausted with 1!

Who else is still feeling exhausted with just the one child? My October 16 babe is now over 2.5 years but after I put her to bed each night I feel like a complete zombie! Despite sleeping well, I wake up exhausted and have to drag myself out of bed in the morning when she wakes up. I’ve had all my blood levels checked, so it’s not a deficiency. Maybe it’s because I’ve never had a break/night away from my daughter as we live overseas away from any close friends or family. My husband and I divide our weekends really well so we have shared time together as a family and time off on our own, but parenting is relentless! I feel like I never have enough time to fill up my own cup before I have to pour from it again. How do people have the energy for a second child? We are just now starting to consider trying again, but it’s been an exhausting journey these past 2.5 years and I really have to mentally prepare to try again! How do you know when it’s the right time to try again? I’d love to have another child and for my daughter to have a sibling, and I don’t want them to be too far apart, but where do you get your energy from? Perhaps upping my sleep and caffeine is just what’s needed to manage 🤪😅