I totally understand what you are saying. When I was working before, I barely had time to do anything before I took off for work. My husband gets up really early, so now he's only doing it when he comes home from work. He tried to do it at his desk, but one day the big boss came by.....well that put an end to that.
My girlfriend does it in the shower. I've tried that, and it worked for me. Or you could wait until you come home at night, before dinner.
Or lastly, you could do it for a shorter amount of time, twice a day. The thing is, the longer you have practiced this, the more you look forward to it. It's weird. You'll find the time.