Very high packet loss

Hello. I am typing this post under my mom's account. That's why the name here and the account names are different. Anyways, I recently moved into a new house a few months ago. Since I have moved I have had to switch internet providers due to location. I now have Cox. Ever since I have moved in my internet has been terrible. I play online games on a computer. My computer is not the issue, as it was perfectly fine in my previous house. I play with an ethernet connection. I have run many tests in cmd on my computer and I have seen that I have been running around 25% packet loss. This is very frustrating being that I play games. Every 15-20 seconds or so I have a 5 seconds period of not being able to do anything because of my internet. My ping is perfectly fine. I just run high packet loss. I have tried so much to fix the issue. I cannot do anything like switching providers due to me being underage and my parents make the decisions (they won't let me switch). Cox would be perfectly fine with me if I did not have the packet loss. I am at a point where I have no idea what to do. I am struggling to find where the issue is. Can someone help? Thanks.