please help!!!!!!!!!!!!!!

I am getting divorce. Me and my wife both don't want to fight in court so we talked to same lawer. By the lawyer's calculation, I have to pay about $800 for child support and $1000 for spousal support. Why that much??? I am making only $4000/mo before tax. She does not have a job. One child 6 mos. We are in CA, santa clara county. Also, she refuse me to visit my son. Should I ask her sue me for the support? should I quit my job now? also, the lawer says since we just married for a year and by law, she could get 1/2 yr spousal support, but she is asking for one year. I love my son, if I go to court, can I say she has no financial ability and I want the child custody? How to calculate the spousal support in CA? She said if I fight her for the child custody, she will kill herself, can I use this to say she is not mentally capable to raise the child? Please please help!!!! She came to the states for three yrs and she did not have to work for one day, I support her 100% and now, she use this (no job) against me, very very sad.