In AA we decide to follow a Higher Power of our own understanding.
That decision stems from the ABC's of Steps 1 and 2.

a) that we were alcoholic and could not manage our own lives.
b) that probably no human power could have relieved our alcoholism.
c) that God could and would if he were sought. 

Three Thoughts about Step 3

 First Thought
I need a viable concept of "success." 
The Big Book states that the first requirement of Step 3 is that we
"be convinced that ANY life run on self-will can hardly be a success."  

Old idea of success:
In all honesty, I thought that someone as successful who was self-made,
especially radical artists, truth seekers, rebels, fringe personalities who "saw through" accepted paradigms.  
At that time, I didn't understand my concept as one lauding prestige, power, control
but now that truth is clear to me. 

New idea of success:
Someone is successful:
who has the humility to see they are a child of God and very, very human.
who empowers others, especially those who support the spiritual growth of others.  
who tries to practice spiritual principles:
honesty, willingness, faith, humility, justice, love, service, surrender.
Sponsors are a success, for example.
I am happiest with my spousees when they try to carry, transmit, channel the message to someone else.
Yes, this is practical!

 Second Thought

I have a "new Employer. "

"We had a new Employer.
Being all powerful, God provided what we needed,
IF we kept close to God and perform God's work well.
Established on such a footing
we became less and less interested in ourselves, our little plans and designs.
More and more we became interested in seeing what we could contribute to life.
As we felt new power flow in,
as we enjoyed peace of mind,
as we discovered we could face life successfully,
as we became conscious of God's presence,
we began to lose our fear of today, tomorrow or the hereafter.
We were reborn."  
(Step 3 Promises, Big Book page 63)

"Jobs" come and go.
I waitressed, then sold shoes, then became a teacher, consultant, writer,
Yet, my Employer has remained the same.
My job and purpose have remained constant,
to work the steps.
God's love is unconditional; God's provision is not. 

Third (and last) Thought
I am making a decision to work Step 4.
The Step 3 decision is essentially a commitment to trust the process, to trust God:
G.O.D.
Good Orderly Direction
which means to "immediately launch" into Step 4 emPowered by HP.

"Trust in the Lord with all your heart,
and lean not into your own understanding;
In all your ways, acknowledge him,
and he will make straight your paths.
Be not wise in your own eyes;
fear the LORD (the disease) and turn away from evil.
It will be healing to your flesh
and refreshment to your bones."
Proverbs 35-7