I didn't worry that I was killing my female self--it wasn't who I was--but I did worry about how people would take it. Mainly my partner, since I was not in touch with my family. My colleagues were fine with it, and my few friends were, as well. But they already knew I was trans. They knew it when they met me. I really didn't have any friends from before...except one I never saw, and she must have known because I did have a male name and years earlier, before I took that name, I told her to tell her kids I was Uncle Girlname. Riiight.
The only one who mattered was my partner. I knew that if we broke up, everything would change, so I worried about him no end. I had no certainty about what the future would bring, but I was terrified of it. For a long time, I couldn't live one day at a time; one day was too much. So I lived by the hour or even the quarter hour. Heck, sometimes minute to minute.
I can say this: if you have just a couple of people who support you, that makes a huge difference.