Where do I begin?

[Kelly23]

I move toward divorce every day. I cannot take this misery much longer. My hesitation is because I have two children, both teens. We have been living, peacefully, like strangers in the house for almost a year but I am not sure how long this will last.
If you knew then what you know now, what advice would you give me? I have a good job and good credit. We do not have much in savings but I do have my own checking account that I put money in from my second job. We have paid 15 years on our 30 year mortgage. I own my car. We have lots of credit card bills, mostly from his mid life crisis.
Right now, I feel like I would rather live alone than live with him and be lonely.