Internet slow and customer support is non existent

Been pulling my hair out because my Internet service has been abysmal for over a week. Been restarting my modem via the app and I'm convinced it doesn't even restart that way. I've reset the modem manually and the router the same by unplugging and restarting. I've tried to use the useless AI assistant that knows nothing and comes to the conclusion that it's not Xfinity's fault, it's every devices in my home's fault. Everything is fine on their end so it can't be figured out and instead just go in a loop. Apparently even calling an Xfinity store just brings you to a useless AI call that also helps nothing. So the only way to reach someone is via the forums in a public facing way. Which doesn't convince me that even the assistants here are even human. If Xfinity didn't have a monopoly to the building and allowed for other hard-line Internet providers I would switch in a heartbeat. But I get no choice in the matter anyways. I pay for 1.8gb Internet. Why is it I get 1.1mbps down and 6mbps up. It's not even close. I can barely watch a show without it looking like it's 240p and I can't game without lag.