How to know im an admin? please help?

[Im Greek]

so i was just chosen to be an admin on the page and the person said they would add me on the 'admin panel' in a minute..will that show up im my notifications or what? and also, once i am made an admin, how will i be able to post pictures, like will it just be like a personal page where you click to add a photo, like how will i do that im really confused could someone break it down for me please? thanks!