Our emotional transformation or freedom, actually comes from renewing our minds. (Rom. 12:2) God has made a way so that we can enjoy life. (Isaiah 61) is a perfect example of how God wants us to feel and experience life. The world must look at us and come to the conclusion that we are blessed (and happy).
Start focusing on what you believe and not on how you feel. The thing we are always want to prove is most of the time our negative emotional strongholds. When we are happy, it is a energy that other people can see and feel.
We are thinking beings and is thinking the whole day. Our brain is changing moment by moment as we are thinking. Our mind control our body, including the brain. Our brain is not controlling us. We cannot control events and circumstances in our lives, but we can control our reactions. Our mind is more powerful than medicine, and more effective. (2 Tim. 1:7) we do not have a spirit of fear, but of love, power and a sound mind.
We can control the physical.