The most constant element of motherhood is EXHAUSTION! It doesn’t matter if you have one child or ten children, parenthood is demanding.
Strings that are ALWAYS taut eventually lose their ability to bounce back, and mothers are no different.
I recommend taking a break AT LEAST twice a year! Spend time with your hubby, by yourself, and as a couple. AND, rejuvenate your whole self: spiritually, physically, mentally, and socially.