So, it TURNS OUT, the New York mirror for Alice (ny.alice.sk89q.com) stopped being a mirror because I mixed up IP addresses, and therefore ny.alice.sk89q.com was the exact same as alice.sk89q.com, meaning that it didn't fix any latency problems at all.
But now I have fixed it! It may take up for a day for the change to take effect for you. You can check to see whether the change has taken effect for you by going to
http://ny.alice.sk89q.com and seeing if the page says "Hi"
If you are in the United States, I recommend connecting with the address ny.alice.sk89q.com (instead of alice.sk89q.com), which should give most people a better connection to the server. Also, I still have to re-enable mining lasers and stuff this week. And read 40 PMs. Annnd push a client update.