Do I stay for the children? Or exit this marriage?

I would love to hear some experiences of those who stayed in their unhappy marriage for the sake of your children and how your experience fared?

Also, I would love to hear experiences of those of you who filed for divorce and now share custody.

I'm unhappily married and have young kids. I feel so stuck. I've been doing individual therapy for 7 years now, with the same therapist. I've done a lot of work on myself. I am emotionally intelligent however my spouse is the complete opposite. Emotionally dead. We currently are living like roommates, for the past few months the distance has widened.

My kids would be shattered if I were to divorce, but the cycle of unhappiness is just being regurgitated. Is my happiness THAT important? Can I just coast a few more years?

I feel like a hamster stuck in a wheel.

Thank you in advance for sharing your experience.