I have been married to my wife for 4 years. We have 2 kids: a boy(3) and a girl(1). We live in Michigan.

I work full-time and my net salary is $4200/month. She's a sahm, but she started a part-time job recently where she makes about $100/day. Before we got married she had a FT job working up to 60 hrs/week.

We've been having problems for over 2 years now, and no matter what I've tried, nothing has worked with this lady.

Without getting into much detail, I decided to file for a divorce in 6 months from now (unless I see some real positive change from her side). I will apply for shared custody for my kids 50/50.

What pieces of advice (and what mistakes should I avoid doing) can you guys give me so that everything goes smoothly?