You should talk to your parents about how this is affecting you and your child. If that doesn't work i would look into a different living situation
Btw you should consider getting those really good ear phones for music or gaming. Once you raise the volume and put them on you can't hear nothing from the outside and it makes the music/game sound better. They are only like thirty something bucks at Walmart.
I have the same issue with my younger brother(who is currently living with me) and my children. The best way to release my stress is exercise. Light walks, cleaning, and my favorite I use my pillow as a punching bag every now and then(only for them really emotional days). Also I like playing competitive online video games like call of duty or halo. But to be honest grand theft auto is my favorite. Going around killing randoms is fun. Either way just find what works for you.
Please don't hurt that baby can u move somewhere else??