As gas been said as long as you stick to either one or the other style then it will be pretty easy to master, a granny square is probably the best a d easiest place to start, as you can work out your own style of handling the yarn an forming the stitches. Although the basics are pretty much the same with individual crocheters you'll find that each one will have their own style. I used to like experimenting with different stitches and to see if I could come up with something completely new. I prefer crochet to knitting because it grows so much quicker.
It's amazing though what you can make just with simple granny squares. Have fun xx