@tamazahriel You've received some good advice from some of the women here. Certainly, if you tend to become overwhelmed - and that's normal ! - take someone with you to your next appointment - someone with a cool head who will help you get the answers you need. WRITE DOWN all your questions and the factors you need explained, don't allow yourself to be rushed, and make sure you get answers. Also ask for an email address that you can use to ask follow-up questions or get clarification.
It's a scary and confusing time waiting to start treatment. As has been pointed out above, there are lots of resources on this site, but don't hesitate to ask specific questions. There will be someone here somewhere who knows what you're talking about.