Can’t stand husband

I’m so unhappy. I wake up miserable everyday. Been with my husband for 6 years, married 3. I’m still rather young mid 30s. We have a 2 year old together. Just bought a new house. But I just don’t love him, I don’t like being around him. He’s always nasty, anxious, miserable. I can’t live the next half of my life like this. When did you find the courage to finally say enough and walk away ?