If only I could see what the future holds.

So...here's the situation...I've been at my new job for just a little over two months now, and as I've posted before, I love it.  I love working with clothes, and I love helping people pick them out.  Essentially, I shop all day long.
Two days ago, I was offered a new position as a Personal Stylist.  As a personal stylist I would continue to do what I do now, but I would do it on an appointment base only-which to be perfectly honest is very hard for me.  Not the actual appointment part-I actually find that to be a lot of fun.  In an appointment I can go all over the store with whoever I am shopping with.  I can pull together outfits and set them up in a room in advance so that when they arrive they can just try things on.  Its the actual making of the appointment that is stressful to me.  I find it difficult making phone calls to people I've never met and asking them to come in and shop with me. Why the heck would they want to do that?  Why should they trust me to do that for them?  I do enjoy the challenge...but it also stresses me out.
So, do I take a job that is appointment driven after only being with the company for 60 days?  Or, do I stay where I am at, continue to learn and grow from the amazing managers that I have, and try and move on at a later time when I feel more prepared?
Oh, and I have to decide by tomorrow morning.
Wishing I had a crystal ball so I could see into the future....
Praying, and hoping for God's guidance instead.