I am going through the early stages of a divorce - anything I should know.?

[Dd P]

No kids involved - youngest 16
Money does not SEEM to be a pb agree to split 50 50 .

But I have worries - do I get to keep (she can to) my stuff prior to marriage and just split the stuff since my big mistake of saying i do? Am in Tucson AZ. if that matters also was married here.
EDIT
There r 3 kids if u can call them that 16 girl, 18 21 boys, they r mixed about it - but all we ever do is fite and I think that is worse for them to be around then us being divorced. She wanted one about 3-4 years ago now We both want it. she said years ago to go to a marriage counselor i at first refused but then went only to have her never show up after the first meeting!!!! I stopped after about 6 more - she said she would go - NOPE. I want my life back and my "kids r leaving soon anyhow. I do not know OR care if there is anyone else - there has never been anyone else for me (at least not in a physical sense - but I admit my mind did wander - no other part ever did), but she is no longer the person i married, i am also not, and we r just soooooo different now, nothing in common anymore. LIFE SUCKS.
Kids know its NOT their fault.