I've been referred to the mental health team

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From my current experience when they assess you they discuss the type of therapy to offer you and put you on the waiting list. From my initial referral to starting CBT I waited around 2 months for the assessment then another 6 months for CBT. I was however offered sooner if I was happy to have a trainee therapist but that would have involved being recorded on the video call. I didn't like the sound of that so I waited. They should also be able to offer you self help programmes you can use while you are waiting. There is one called silver cloud.
The assessment will take a detailed history of any previous mental health illnesses if any and discuss what your symptoms are now. They will assess if you are at risk of sh or suicide so don't be alarmed by some questions that they have to ask. Most important thing is to be honest and tell them exactly what is happening. Best of luck.