Starting over but feeling stuck 

Starting over...what does that really mean??? Leaving your home, moving out of state, buying new clothes, changing jobs...the list goes on and on. I have tried and am contemplating a lot of what I listed yet I still feel stuck in a rut. Anyone else experiencing this. I am 10times more happy than I was just a short year ago and have come a long way in my emotional healing but I still feel like I just can't get past something. What is it??? I am on the verge of making a huge decision to move to AZ with my sister in a few months in an effort to start over, but its bringing up all kinds of emotions and I have been crying more and more. Why is this??? I want to move, I want to start over, do I need to do such a drastic change to do so? Everyone around me is telling me to let go and take a chance, what do I have to lose, open myself up to new places and people, and I agree with everyone but why am I struggling with this???