Hi Sheena, I'm Greg. Like you, new here; and like you, on LL!
You're going to be amazed by LL. I'm four weeks in now and, admittedly, I'm changing to Cambridge Diet on Thursday, but that's personal circumstance. LL absolutely works, and the only thing to be nervous about is how easy it is and how quickly it'll happen!
You're already at an advantage because you've come to this forum *before* you start LL. The guidance and motivation you'll get here will get you over that first week no problem. I wish I'd joined way back!
Good luck.