And you believe that there is a goddess who is the wife of the Father.
I believe in the possiblity. God has not revealed the existence of a Heavenly Mother.
While there is often conjecture that there is a heavenly mother due to our belief in eternal mairrage, however, that is not official LDS doctrine , only conjecture and opinion.
You have plenty of ‘conjecture’ in your beliefs as well. Although you have enshrined your conjecture to be above the bible in the various creeds which cannot be found in scripture.
Also many Christians believe in a conjecture called the ‘rapture’ that is non-biblical, but dates back some 200 years to a dream some woman had who never even claimed to be a prophet of God.