Hi everybody!!! i need some help pls 
… i saved the model i was doing as .zbr by mistake, everything went berserk and i had to restart zbrush, now i cant continue working on my model couse it wont let me hit the edit button, how can i get it back so i can continue modeling? or at least trying to 
it`s my very first time using zbrush and i am really lost, hope you can help, and thanks!!!
Basically, there’s nothing to be done. You’ve saved a ZBrush document which is the 2D canvas, not the model. In order to save the model you need to save the project (File>Save As which will save a ZPR file) which saves everything together or save the model on its own through the Tool palette.
As you are new to ZBrush I suggest you start with the documentation in the Documentation folder of your installation. Then hopefully you won’t have too many nasty surprises. 
Have fun, 