Well, that's a loaded question and one that I think every yogi asks him or herself. It is not easy to practice yoga on your own, but it is very achievable. When we think of a home practice, we naturally think of setting aside an hour or more, just like we do for a class. There is nothing wrong with that, especially if you are disciplined and have the time every day to do an hour practice. But, "Practice" can mean many things, such as a short meditation, a breathing practice or just lying in Shavasana and doing a few twists or the wind eliminating asana.
Yoga is as multifaceted as you are and your practice can be as unique as you.
I found that by creating ritual, I can do my own practice. I have an established morning routine that consists of a few gentle stretches and then a 10 minute meditation. After that I read something. I usually have 2-3 books on the go and read a few pages from 1 or all 3 of them. Then, of course, getting outside in nature for a walk completes my ritual.
If I can't fit my reading or a walk in in the morning, that's OK. I never beat myself up for it. I just fit it in later in the day , or sometimes I can't at all.
What matters is the intention.
I hope this helps!
In Abundant Health and Qi,