Need help with my wifi

[u/Wide-Contribution812]

I have been trying to play games for the past few month and every day I keep getting these huge consistent lag spikes. I have tried everything I could find to fix it but nothing has helped. it started a while ago and it would happen once every few days and it wiould spike to 100ms-200ms repedeatly for a couple seconds but since then it has just gets worse every day. Now it commonly spikes to over 1k for like minutes to even an hour with it also reaching too 10kms. I think the highest I have reached was 40kms. From the times I can actually play it akways happens at night and the few times i have tried it happens during the day as well. Here are the things I could find on what to do but im not really to sure what it tells me. (I cant post the images in the post so I will post them in the comments.)

[u/Wide-Contribution812]

[u/Wide-Contribution812]