Inertia

How does one move beyond inertia? Is it strength of will, finding the motivation, or is there more to it? For the past two years I have felt as though a huge unidentified barrier exists when I think I’m ready to move forward. For all the plans I’ve made and all the things I think I want to change, I cannot find the internal strength to risk anything! I don’t consciously say “no, I can’t go there, do that, or whatever the case may be. I physically begin to feel nauseated and anxious and immobilized.