With all that's been going on these last months, I'd be surprised if you haven't experienced fatigue. Fatigue is a classic symptom of stress, but going deeper, it boils down to lack of oxygen.
Within each cell, good mitochondrial function is absolutely essential for energy plus recovery from illness as it moderates our immune response. Hence why it's a hot topic in many circles in looking at COVID recovery in which mitochondria damage has occurred. And therefore, long-term fatigue ensues.
But even if you don't have illness, we can enhance our body's production of energy...simply by increasing our intake and the body's ability to use oxygen. Check out some main ways to improve oxygenation in your body. (I'm no dancer, but it was a fun challenge to learn this little move...plus homeschool P.E. for the day DONE!)