Don't hold your breath, especially when you are trying to maintain the correct posture as it incorporates more stress and anxiety into your body
Warming up is not something you can ignore in yoga. It helps prepare the body for the exercise. It maintains muscle coldness and stiffness
Do yourself a huge favour leave your phone in your car, or if you're bringing it, then put it on silent because our smartphones are huge sources of distraction in our lives, which is the complete opposite goal of yoga
Another common yoga mistake people make is trying to fit their body to a pose rather than fitting the pose to their body. Just relax and focus on what your body absorbs