I'm missing an important element in my practice -- sleep.
I've been missing my morning practice and meditation for a while now. It started a few months ago when I was having insomnia. I have chronic insomnia since I was a teenager. The condition improved a few years ago when I started yoga, but I still have problems sleeping sometimes when the weather is warm.
With my insomnia, I just could not fall asleep before 5 am. It was torture, especially during workdays where I had to show up for work with barely 3 hours of sleep. So I skipped morning practice, because I just couldn't find the energy to practice or meditate. Then gradually I skipped a lot of my evening classes at the yoga studio.
It wasn't until last November when I started attending M's classes that I resumed my regular evening practice. But the morning practice is still difficult.
I'm still trying to get into the swing of my morning practice, because the mornings are the only time I have for a home practice.