You should never hold yourself responsible for the divorce of your parents. Keep in mind that, you are too young for it and it was the issue between your parents, you had nothing to do with it.
You should realise that crying does not help in any case. Instead of being overpowered by your emotions, you should try to get over it. Remember that, it was the responsibility of your parents to come to a mutual understanding.
Keep in mind that this is also a difficult phase for your parents, you should accept the fact and do not blame them in any case.
If you are unable to get rid of your emotions, try engaging yourself in songs or poetry.
Prepare yourself for the fact that after a short time, your parents might be patching up with other people. If you have anything to say to them about it, you should talk to them politely.
You should engage yourself in your hobbies as this way you can keep yourself distracted.