See the fear as part of the process.  Go into your fear.  Look at it. Feel it. Don't fight or avoid it. Just sit with it.  The fear transforms into something else. When it does you can let it go. This happens instantaneously.

We all attach ourselves to things in this life. People, things, emotions. Can you look at all these things as impermanent and temporary?  Can you let your life go?  Imagine you are dying and your next breath will be your last. Imagine you will no longer have all these attachments of life.  Will you fear this? If you do... look into that fear as I described above.

You will die one day. Practice now for that day and you will learn how to live and let go.  Life is so short. Let go now.