Like you, I was Triple Negative, stage 2A, Grade 3, and had all my treatments during last year. You are very lucky that your tumour was so small and caught very early. (It often proves to be bigger when they have actually taken it out than it showed up initially on scans or USS.)
With TN we only have surgery, chemo & radiation as the new drugs don't work for our type. I had all of them, finishing with a hysterectomy afterwards. It was not the easiest year of my life! but it was all do-able and I was able to stay strong mentally and focus on getting better as soon as possible.
I wish I could give you a 20 year reassurance! All I can tell you is that I feel really well, exercise in the gym every day, eat lots of F&V, and drink pomegranate juice in a wine glass except if we are out to dinner. (This was difficult and I still cheat occasionally.)
There is a TN group on this site where you can read other women's stories and get lots of comfort and information. Stay in touch. All the best.
Michelle x