How can I find the panel to edit brushes?

Question

whenever I press f5, all I get is the bottom right panel (highlighted in red). What I want, is the second image, the panel to edit brushes. I can't seem to find it. Going view -> brushes or window -> brushes does not work.
image 2:

Answer 1

RK has given you more info.  Workspace is how your panels (pallets) are arranged.  The default is Essentials, which you will find on the right side of the Options bar at the top of the screen.  There are different Workspaces for different uses of Photoshop, some of which will be selected automatically according to what you are doing.  3D and the video Timeline are two examples.
Or you can make your own.  Arrange the panels to the way you like them, and click on Essentuals and choose 'New Workspace'and save with a name of your choice.
When things get messed up, you can reset the current workspace to bring it back to standard.  But I fell into a daft trap when suggesting that you reset yours, because I was focused on my own Dual Screen workspace that has the brush panel open permanently.  You are probably using a single screen, so resetting would have achieved nothing.
But the way I access brushes is to use the lower pen button on my tablet, with the pen placed just to the right of where I am working.  That is super quick and leads to a fluid workflow.  You can do the same thing with the right mouse button.