To get out, just press a random tool. It will tell say something like "Do you want to Apply?" Press Apply. And to duplicate, press Ctrl+J or right-click on the render-layer > Duplicate.
Thank you so much for your help and fast replies =D Gah how do you get to the screen with the in depth brush presets or w/e
to duplicate the render you right click the layer in the layer pallette then click duplicate layer or go to layer at the top then duplicate layer and to get out or transform (that the proper name for control t) you just click the move button and it should come up something like accept or cancel and al you have to do is click accept