Yes do go see a counselor. When I was young my parents didn't get divorced (they are divorced now) they stayed together for the sake of the kids. Like you I was very bothered by their conflicts and I felt bad I had to wait until I was 18 to work out those conflicts as that is when I was free to do what I wanted.
I want you to know you want to get help now so you can work this out and be a happy teenager and adult. There are many people that have been in your shoes. The important thing is to work on this right away.
Your parents conflicts can follow you as you grow up and you can make bad choices in friends and with the people you date because you are feeling bad about yourself. You want to put yourself in the frame of mind that you accept nothing but the best for yourself in your thoughts in your mind and in your life as your grow up. A good counselor can help you do that.
You can also start a journal to talk about how you feel write letters to God if you believe in higher power, write letters to the people or pets in your life that you want to say things to. Writing a letter to pets that have passed away can help you work through grief. Writing can really help you feel better. You have your whole life ahead of you and so hang in there it does get better. I know from experience.