I spent too much time looking backward, questioning my choice, instead of embracing it and moving on. For about five years, I thought I’d made a big mistake – then I learned I was wrong, that my choice was the right thing to do after all. I was at Apple for many, many years. Apple is a very competitive, fast paced environment. You throw your whole life into it, and it becomes your life. When I arrived, the stock was really low, and everyone at Apple felt like we are part of a startup. Something new.