Working life after honeymoon

honeymoon phase of new work is over and reality strikes back. Yesterday was my first day of complete chaos and not being able to structure everything I had to do. I mean I thought of work cases before falling asleep, not good not good. It´s because the new phase of meeting clients and actually talking to them has arrived and I have stagefright about that... What am I going to say what am I going to do, yadiyahdi yaaah... I just don´t have the rutine and I feel lost:-/ Anyways there is nothing to do about, next week I have at least 3 meetings, one of them on my own and I have to tell some bad news, yikes, I hope I can do it in a very appropiate and empathetic way so that they wont get too angry at me:-/