Need advice don't know what to do

My wife and I have been together 6 years and have been married 7 months. We are young I'm 25 she's 21 we have two children a 5 yr old boy and a 1 yr old girl. Our past is rocky at best. I've cheated she's cheated we constantly argue over mindless things that I know don't matter but when I'm around her this switch gets flipped and I lose all control. When I am away I rarely even get angry. We have been talking about divorce and I would be fine with that but she us determined for me to not be able to see the kids if we ever went through with it. I am lost without my kids. I am a good dad. I am the only working parent and that's how its always been ( not by my choice) I am very involved in my children's lives I help coach my sons grass cutters football team and my daughter lights up when she sees me and my heart melts for her...If it were an option I would love to work out whatever it is wrong with us but she refuses counciling saying I need to go alone she is always angry with me claiming I don't do enough around the house and she is constantly accusing me of cheating and she has all of my passwords to everything( online phone records Facebook gmail phone) hell I even told her to trade me phones for a couple months in a spur of the moment argument and she readily refused. I don't know what to do. I love my kids and would be lost without them and I especially don't want to hurt or damage them with a divorce... any advise would be appreciated and if its something I need to work on please just tell me

councilling would be the best option ,if she agrees otherwise divorce is the only option