You need to tell your parents how you feel about them splitting up. Do not hesitate to express yourself freely. Pent up emotions can make the situation enough tougher and may even take a toll on your health.
Do not feel guilty for their decision to split up. Never start thinking that you are responsible for breaking up your parents. Even if something you did may have contributed to the rift between them, understand that your action could not have possibly driven them to the point of splitting up.
Take your mind off your parents and the situation of your house by going out with friends more frequently. Surrounding yourself with friends who can make you laugh and have fun will serve as the best antidote to the depression due to your domestic problems.
Distract yourself by watching movies, playing online multiplayer video games and playing outdoor sports such as soccer or cricket. Both films and video games will help you break away from reality for a while as you concentrate on what is happening on the screen. Sports will help you blow off some steam and vent your pent-up frustration.
Just because your parents are splitting up and maybe headed towards divorce, you still have both your parents. Stay involved with them. Continue to treat them as you did before. Remember, you are their child and they love you very much irrespective of how they feel about each other. Reciprocate this love to the fullest and make them special.
Perform outdoor activities with your parents. Go out on picnics, watch films in cinema, visit an amusement park, etc. This will not only help you to bond with them, but will also make it easier for them to cope with the separation. Remember, your parents are going through a very difficult time themselves, far more than you can probably imagine. They need all the love and support they can get.
If your parents finally get a divorce, do not let it change your attitude towards them. Understand that they probably had a very good reason to take such a huge step.