1-Keep your nasal cavities which are your nose and sinuses, nice and clean with regular wash with a neti pot. A blocked or congested nose will prevent you from a smooth breathing feel.
2-Wear comfortable, loose and breathable clothes that are made from natural ingredients like cotton, bamboo - tight fitting clothes don’t allow for any expansion on chest and abdomen areas.
3-Practise with an empty stomach and ideally with empty bowels- A full stomach or bloated belly would cause much discomfort. Avoid practise after meals. Both mornings before breakfast and evenings before bedtime are ideal.
4-Sit tall with an erect spine, in a crossed leg position, or on a chair feet on the floor (support underneath feet if needed) or lie down comfortably. Chin parallel to the floor, relax face muscles, shoulders pressed down and back, shoulder blades pulled towards each other at the back.
5- Take 3 deep breaths in through your nose and out through your mouth to reset your mind and bring your awareness here and now. Then you can start your paranayama practise from a better place.