Tiering on the jp server is hell

So I wanted to tier in the top 500 for this event, but I'm scared that I won't be able to make it and then maintain it for the next 7 days or so...

Is there any of you that are high tierers? If so, any infos on how much points people have? Or do you know if people gather more or less points after the first day? Any tips are also welcomed!

This is a vs live event by the way, in case you are on En.

Thank you, I really want to make it!