Hi @Tammy9 wish I could give you a big hug (if you're a hugger!)
I found it so so overwhelming at the start but I'm here to say it does get better and you will get through it.
I kept working as I could through the specialist appointments- only taking time off work for when I had surgery (one week) and when I had to go away for radiation treatment (I live regionally), but if I lived closer to the treatment centre I would have worked through that also.
Try not to run away with all the what-ifs (easier said than done!). I started a private blog to get all my thoughts down out my head - keeping busy helped me too. So far everything has been much easier than I anticipated.