You will experience some discomfort with change until the change occurs and then that's normal. Overwhelm Break things down into smaller chunks, or steps. Change is possible if you define it as possible. Refuse to put yourself down. This doesn't mean you can't be self critical about negative habits.
Truth is the greatest healer.
We do have in our life that which we have chosen. Make a list of everything and everyone that is in your life. What you haven't let go of you've chosen. Look out for your own self interest and stop preoccupying yourself with the anger that comes from the attitude that someone is victimizing you. Fix the problem, not the blame.