Change

Jesus Christ is the same yesterday and today and forever. Hebrews 13:8

Your schedule fluctuates from day to day, and you have the calendar to prove it. Decades ago, life was pretty much the same every day, especially for women. Most of what we did was for others: church and big family dinners on Sunday, wash on Mondays, ironing on Tuesdays, etc.
Aren't you glad you live in a time when you can experience new things every day? As you long for consistency, look to Jesus. His loving character never changes. HE was, is and will be.