What stage have you reached? If you are a litigant in person instructing a direct access barrister, you need to be very organised. You should provide the documentation for the case and a simple case summary for the barrister to review. If you are close to Final Hearing, they will need the full bundle.
In the first instance they may just need the summary and the most recent order from the court so they can decide whether to take the case.
It is a good idea to have an early conference, which may be by phone, after the barrister has reviewed the documents. Have an agenda and take careful notes. You need to explore the strengths and weaknesses of your case, what evidence will be needed that hasn't been provided and/or how to present the evidence you have. The barrister will want to press you on points that may be contentious to test your reliability.
You need to be confident that the barrister understands your case and that they have given a realistic assessment of the likely outcome.
You could ask the barrister if they would just do the conference separately first.