Question for mormans?

I have been studying your religion and I have come across disturbing items. First you believe God lived on another planet and when we die if we are good mormans we can become Gods? Where is that mentioned in the Bible or the Book of Morman? I understand you do not believe in polygamy, buy why do you believe God has many wives? What about Jesus and satan being spiritual brothers? What about Joseph Smith being involved in the occult and him being found with a talisman of Jupiter or being affliated with masons? Why is none of this mentioned in the Book of Morman? I am not trying to put down your religion but I am finding beliefs contrary to Jesus' teachings. And why do you believe you can get to Heaven by works, when in the NT Jesus says you get to heaven through Him. Once again I am not trying to put down your religion and I have some questions. Feel free to email me privately if you wish.