Fear can cripple a person and become a controlling factor in their life. Of course there is natural fear that we all occasionally encounter. However, when fear starts to become a controlling factor in one's life as a stronghold, there's something wrong.
There is a scripture that basically states "you have not been given a spirit of fear, but of love, power and a sound mind". Note the word spirit. You see sometimes overwhelming strongholds of fear are exactly that. A spirit. A evil, wicked and unclean spirit that has rooted deeply within a person. When this happens it requires deliverance to be set free of that spirit. It requires the help of God.
If you are finding your life being controlled by un natural fear, contact a local church and talk with someone. They can help you. They will be able to counsel you, give you scriptural advice, pray for you and God can use them to set you free.
Blessings, and may the peace of God rain in your life
In His Glorious Name Ministries Online