Yoga is a vast field. To get into it, you should be clear about your need and purpose for joining this activity.
Secondly, it is a need as well important for a beginner, as said by other contributor, to learn Yoga from a Yoga teacher directly i.e. either on one on one basis or in the group; not from indirect sources such as Video, books, etc.
Once you clarifies your need and purpose for joining Yoga and; ....feels and thinks it (need and purpose) needed to be prioritized, it will becomes easy for you to dig out time for ... However, after speculation, if you still cling on learning from indirect sources, wait for right time to get into Yoga.