Days feel like days

You know how certain days of the week, Monday through to Sunday, feel different and unique?
So that every Friday you know it's Friday because you feel it in your body calendar?

Then you get the days that don't feel like their names.
Yesterday felt like Friday when it was Thursday and today felt like a total Sunday.
It depends on your weekly routines I suspect.
If you go to school, then the first day of school after a break feels like Monday, even if it's Tuesday because of Queen's Birthday weekend or something.

Yesterday felt like a total Friday, because exams had finished on the Wednesday so the week felt ended due to the conclusion of a hard two-week's worth of strenuous study and two-hour sized pressures. It was Thursday.

Today felt like Sunday, because Sundays tend to be my nothing-useful-much days, and I didn't have school so it was rather a day of nothing-useful-much. It's Friday.

If life goes on like this, then isn't it interesting that we have our own associations with days? Should we thus name the weekdays with the day-name they feel like?
For example: A day with new starts on projects and new meetings with old faces is called Monday (say). The next day feels the same. And the next. We can thus legitimately have multiple successive Mondays.
And school holidays would be called 14-weekend-days in a row.

Mind you, that would result in much confusion due to personal differences.
But an interesting prospect anyway.