Child of Divorce advice

My parents are separating and plan to get a divorce. I don't know how to handle it and I'm keeping a brave face and holding my emotions and feelings in, which I know is dangerous. How do I get through it? I don't want a broken family. I don't want to have awkward Thanksgivings or have the elephant in the room at my wedding in the future. I know my parents love me, but I can't fathom the idea of getting to see my mom or dad on the weekends or holidays only or one whole month out of the year. I'm very close with both of them and I don't want my dad to be alone because he has a lot of health issues and I also don't want my mom to be alone because I don't want her to feel like she has nobody. And to make matters worse, I'm the middleman. How did you cope when your parents split and how can I cope?