I used to consider Monday as the first day of the week. I started the week fed-up and ended it tired. I chose to change the way I think and switched my calenda

I used to consider Monday as the first day of the week. I started the week fed-up and ended it tired. I chose to change the way I think and switched my calendars to start on Sunday. This allowed me to change my state of mind and start the week with activities that I enjoy and spare time. It is 100% in my head, but it worked for me.