I need some help guys.

No, but tell me how you did that too? I need just lines in the outline do you understand :) just lines not full black color just lines 

Now  you select it and go to Window/ path/  and select on bottom 4th ikon from left, make a path from selection

Sooooo i can do that to every picture that is black and white or?

I thinking, you have to go thru basic, to learn little bit more about Photoshop and all tools in it.
Go to help menu  , Photoshop help , get started

Y smth like that but edge detection never works good for me, how do you do it fine sir?

Draw/trace it using the pen/path tool.

That's for Photoshop... no such tools in Elements unless your use add-ons like Elements+ to recover the ability to make paths from selections.
There are other ways in Elements.
For instance, starting with the above result of Rudy (from a Filter >> Adjustments >> threshold), you select the black areas with the magic wand and use the menu Edit >> Stroke on a new blank layer.

Can you tell me where that option is in Photoshop? Not Elements

It would be using the Pen Tool (P). You can make a shape layer, or just start drawing curves and you will see it show up in the Paths palette as Work Path. You can copy/paste that to Illustrator, or export it, or continue to work with it in Photoshop.