Counselling generally works best when attended at least once a week. If this is something, you can do – it is what I would recommend. However, I can also understand that this may not be doable for many, therefore, I do offer fortnightly sessions. This would need to be discussed further so we can understand your needs and provide you the best level of support.
On the ‘how long is a session’, can you please add ‘I am based in harrow but also offer sessions via zoom and telephone which means you can be based anywhere in the world!’