Triple Negative breast cancer diagnosis

I too was diagnosed with stage 3 triple negative breast cancer in June, 2020. I had a lumpectomya week and a half later. Two lympth nodes were taken from under arm which were clear. Chemo soon followed for 5 months which apart from the chronic fatigue I got through ok. A pet scan followed and it was discovered that a lympth node close to my chest wall had highlighted. I went in for further surgery to remove node and surrounding nodes. The final report has come in 8 nodes were removed and 2 still show cancer cells. I am now going into radiation treatment every day for six weeks followed again by chemo which was a hard pill to swallow. My question is have any of you guys hit the 5 year mark as I have been told that reoccurence in the first 3 years is high. I guess I am looking for reassurance as I am downright scared.