Any particular thing I should need to know how to do?

I haven't messed with photoshop I've been wanting to but I never get around with it, I heard this was a good site to learn or find whatever: http://www.pixel2life.com/tutorials/adobe_photoshop/ I have never gone there for anything so I cant tell you if it'll help or not

draw some male reproductive organ used for procreation within a specieses getting eaten by pac-man