So glad you persevered, and I am really sorry that you didn't get the all-clear they were all expecting. However, they found it before it reached the lymph nodes which is a huge plus and your treatment can get underway quickly.
Don't be scared. Just take one day at a time and don't get overwhelmed. Once you have a treatment plan the time will pass very quickly. Keep a notebook in your bag to keep track of appointments, any side effects of your meds, questions you want to ask, etc.
All the best with your new job. Keep posting and let us know how you are going. Big hugs, Michelle x