Abnormal mass on mammogram and ultrasound; awaiting biopsy results

I'm a 42 year old Nurse and mom of 3. I did my 1st mammogram last year and it revealed I had heterogeneously dense breast and may obscure small masses. No call back so I assumed everything was fine. I had my 2nd mammogram done this year and they called back for a ultrasound of my right breast. I immediately start freaking out. My appointment with my PCP and my ultrasound was the same day. I spoke with PCP and asked exactly what did the report say and all I heard in the moment was small mass. I immediately was scared. I arrived for my ultrasound and ask them to print the report from the mammogram and went to the back to get my ultrasound done. After it was completed I had to wait there for the results. I was expecting a quick in and out. Not me. She told me that they would like for me to go for an biopsy that was scheduled 4 weeks out. My anxiety would not allow me to wait that long. I called the next day and got my biopsy moved 2 weeks up. My PCP posted my ultrasound results the next day too. The findings was a 1.2 cm oval hypoechoic solid mass with antiparallel orientation that increased in size from last year mammogram. I like to research as a Nurse so I dissected the entire report and it made my anxiety worse. I finally had the biopsy done 2 days ago and while they was doing a ultrasound they found a enlarged lymph node that they biopsy also. I left there crying all the way home. It takes 7 days for my results what I was told by the doctor. I would love to hear more stories and words of encouragement.