I am so scared - seeing consultant on Tuesday about prostate biopsy results. Everything seems to be pointing at stage 4 bone cancer. How do you cope with this?

I am waiting for my prostate biopsy results I am seeing my consultant on Tuesday .I had a PSA result of 23and my ct scan and my ct scan and mri scan showed up to lesions  one at a pirads of 3 and the of with a score  of 4 I have had a pain in my back now for 8 weeks and everything is pointing to stage 4 metastatic bone cancer I am so scared and I scared of dieing from this cancer I am terrified and do not know how to cope with this It making me sick with worry How do you cope with this?