Multiple scans, waiting for biopsy

New here and wanted to vent a little. Here's my story. I'm 39. About a year and a half ago, I developed a discharge from one breast. I had a mammogram and ultrasound, but they couldn't find the cause. I finally had a ductogram and they found a fistula, so off to surgery I went to have it removed and have an excisional biopsy. The results came back with ADH and combining that with multiple other factors, it placed me as high risk. I started Tamoxifen a couple months ago, and the side effects are tolerable for now. I decided during my last BS appointment that I wanted a screening MRI since my original problem couldn't be seen on mammo or ultrasound. I have extremely dense breasts, so I did have a 3D mammo last December, which was clear. They called be back right away and said I needed another 3D mammo to look at a couple spots on the same problem breast. I had the 3D mammo, then they added on an ultrasound, but neither scan showed enough detail of one of the spots. One spot has been cleared, thankfully, just some residual from the surgery. They think the other spot might be fat necrosis from the surgery and want to do an MRI guided biopsy to clear it. Only problem is that the remaining questionable spot is not in the area of the surgery, unless they dug around a bit on the other side of the breast while they were in there. I'm nervous about the biopsy procedure and of course what the results will be. The MRI was hard enough as it was, let alone having to go back so soon and for longer. I'm trying to keep in mind that it is probably just fat necrosis and that MRI's have false positives. I'm still waiting for them to call and schedule the biopsy, which only drags the worry out longer.