How do you know?

How do you know when its time to make a change? Is it when you stop worrying about what everyone will think? Is it when you finally feel confident enough to be alone? Is it when you know you have tried everything you possibly can and it still isnt working? Is it when you are feeling so absolutely defeated that this is the only option left? Im scared to get to that point, the point of no return. The point where I know I have already lost myself and then I have to take the step and lose everyone else around me. But Im also scared to death to force my kids to grow up even remotely how I did, with a broken family, a tug of war between parents. I know I am not happy all the time. I know that I am sick and tired of making excuses. Im tired of feeling alone all. the. time. What I dont know is what I need to make me happy. I just know that I want things to change. Its so easy to revert focus when kids are involved. Its so easy to put off the inevitable because its too complicated or not the right time. Who knew being an adult was so freaking complicated.... Is it bad that my solution to all of these questions I face is to just take my kids and walk away from it all. Walk away from everything and start new. I know this wont change anything, and things will just continue in their downward spiral; which is why I am still here making excuses.