Think about what holds you back. Is it fear? Worry?
Think about the fears that bother you on nights you can't sleep – or days you're feeling anxious. What are you afraid of? Is it real? Is the fear necessary?
Some fears are helpful (like the fear of fire, or fears about our personal safety, or making ends meet). But a lot of fears are just our imaginations running wild, or old childhood boogie men we don't realize we've outgrown. It's important to examine the things that make us anxious, to do what we can to respond to the realistic worries, and to dismiss the imaginary fears.
Whatever you do, please do not let your fears motivate you to seek comfort and relief through food. Food is for nourishment and survival, and occasional small pleasure in "managed amounts."