i am not sure where to find out where my subeta points are

If you click 'dashboard' on the side of the screen it should say

Subeta:Rainheart123

and list all your information (sP, CSC, Pet, Status, Users Online...)

Is that module already automatically there , or do you have to put it there? If it's a module that you have to add, it is under "customize sidebar"

I'm not sure, I thought it was there by default...

If it's not there automatically you can add it by going to Personal > Customize Sidebar > Add Widget > Subeta: Rainheart123

The information given from the users above will show you how much money (sP) you have on hand.

In addition to that, you can also visit the Preferences to view your total sP amount.