When one door closes, it's a reminder to look for the open doors!
Letting go helps you to get what you really want. Sometimes it requires letting go of something you'd be happy to be rid of, and other times, it's something that you really like but need to let go of in order to make room for what you really desire to come into your life.
Feelings of unworthiness may impede manifesting by attracting the loss of what you want rather than the gain. Self-forgiveness may relieve feelings of unworthiness when it was you who did wrong to someone else in the past that is deeply buried inside you but effecting your ability to manifest. I also share a suggestion for those suffering from low self-esteem.