Build a buffer into your day.
If you schedule everything so strictly, filling every hour of your day, you’re going to feel much more stress. Because if you go over time in one thing, it’s like a domino effect. One thing affects another, which affects another. Next thing you know, the schedule for your entire day is “off” and you feel like you might as well throw your schedule out the window!
You need slack in the line. If everything is so tightly scheduled and rigid, you are setting yourself up for a much more stressful (and probably less successful) day. If you think something is going to take an hour and a half, give yourself two hours to do it. Not everything will be perfect. There will be distractions or things you didn’t anticipate. That is why having that time buffer in place is so crucial.
Don’t stress yourself out. Plan a buffer.