Nothing is working
Why?
If you are a believer in Christ, and you are not filled with love, joy, peace, forbearance, kindness, goodness, faithfulness (the fruit of the Holy Spirit) there is a reason.
The reason can be that you have a stronghold in your life, an area in which the enemy of God has a foothold. You may have been a christian for many years, but there is an area that is controlled by the enemy. this will keep you from changing.
A Stronghold
A stronghold is something that is blocking your heart from being completely free in Christ. It can be just one thing or several things. Most of the time it is something that you do not recognize in yourself. Others may notice it in you, but you do not. There are a set number of areas in our heart and if just one of those areas is sinful and controlled by the influence of the enemy, than you can never fully feel free, because you are not free. Totally free means that there is absolutely nothing in your life that you are not willing to pray to Christ to remove from your life.
A belief in something that is wrong
Hatred towards a person or a group of people
Not being able to admit you are wrong
An addiction to something
Something that means more to you than Christ
Desire for revenge
Refusal to forgive a person or people
Not being able to love or show love to others
Angry outbursts and rage