Welcome to 3FC!!
You WILL do this!
Take it a pound at a time, and worry about the first five pounds instead of thinking how far you need/want to go.
I found for me that once I began thinking of my weight loss as a life change instead of some diet I would either be ON or OFF, I began to succeed. I found that I needed to make many changes, but I couldn't make all of them at once. As I made changes gradually, I knew that these were changes that I could live with FOR LIFE and that each one of them would help me LEARN how to love myself and my body.
You can do this!
Come here often and join the rest of us who are doing it right along with you!