I am also a child (teen) victim of a very nasty separation/divorce. My parents separated 5 times in 12 years before calling it quits permanently 4 years ago.
Their lack of compassion towards each other, constant back biting, bad mouthing and general bad behaviour gave me a breakdown and nearly completely destroyed my own marriage.
It sounds cheesy but the best advice I can give is to be kind; to your dc, to your ex and to yourself.
You say that your separation is amicable - that's a good start. Your dc may still likely feel sad, angry or confused. Legitimise those feelings, it's completely normal.
Every child reacts differently to this kind of change because every family has different circumstances. Just because others have negative experiences, doesn't mean you and your family unit will emerge from this broken and traumatised.
I sought therapy to help me deal with my feelings of anger and disappointment - it's the best investment I have ever made.
Take your time when making decisions, put your child's and your own needs first, remember to laugh and cry if you need to.
I'm wishing you all the best for the future, OP. 