If you are quoting £120 a session for counselling therapy they are having a laugh! Most therapists would charge half that some slightly more expensive some cheaper. I don’t care how experienced she is that is exploitation.
As a well qualified experienced therapist this is my opinion. Before you go to any therapist ask to check out their qualifications, experience, what kind of therapy they specialise in, are they registered ( they must be in law) do they belong to a professional organisation such as BACP or UKCP, or BABCP . They are not working ethically if they are not, and whether they have professional indemnity insurance. ( they are very foolish if they work independently without it and most salaried posts expect it . No bona fide therapist would object to any of these questions and many private counsellors have a website which will tell you the answers to these queries and what their fees are, some do a sliding scale of fees, some do a flat rate for all but £120 is excessive.