What happens at an Ovarian Cancer referral?

After an absolutely appalling time back and forth from the hospital the past few months, I have now been told that a cyst on my ovary doesnt look quite right, and that I need to have blood tests and an urgent referral to look into this further.

Is there anybody who has been through this who would be able to talk me through what happens next?

My mental health is through the roof and after being given the runaround at my previous appointments I just want some answers now!