Any guys from Australia here willing to have a chat? There is a lot of good information on here but there is also some that doesn't qualify to me.

Short background. Wife and I married 5 years next month. Just over three year old daughter and almost 2 year old son. Mortgage. Both cars are owned outright. We've been having rough patches probably since number 1 was born. I feel like every tiny mistake I make is jumped on by her, among many many issues. At this point, I feel like I should've jave done the separation/divorce thing after number 2 was born...