yea go to your local fabric store and buy a crochet hook and some yarn and google a how-to for crocheting.  Or you could learn to knit. Its a little bit harder but you can make way more shit when you know how to knit, crocheting is kind of limited.
If you want to go the knitting route buy some 16" bamboo circular needles (clover brand or similar) around a size 8 or 9 to start.  They're like 6 bucks.  You might also want to check youtube for tutorial videos I'm sure you can find a bunch on there.
Its impossible for someone to teach you how to make hats on a forum like this you need to take a little initiative. This^ should get you started in the right direction now just go for it.  Good luck!