PHOTOSHOP

I dont have a huge knowledge of photoshop. I know how to do basic things such as, editing colours on pictures, adding text and touching up. I want to learn all the different things we can learn about photoshop as i dont have a wide knowledge. I want to learn how to make eyes, lips and hair different colours if you set the image to black and white.
We just did a brief photoshop lesson and i am possibly the worse photoshopper, EVER.
I managed to get a ghost like image in the background but now i wouldnt remember how to do that. Photoshop is very difficult for me.
I'm gonna have to try and learn everything about photoshop from the easiest thing like actually getting a picture on to photoshop through browser.


I learnt that control z - undo.
Control alt z - double undo.
We must always save our images as CYMK so that the colours and images are the same on here as they are on the internet or when printed out.