Hi Kat, welcome to SCS, I hope you have lots of fun whilst you are here.
Here is a site with lots of teabag links. The one thing I would say about teabag folding is it is very visual and difficult to pick up from sites, I would go to Amazon and maybe buy a book on teabag folding with step-by-step instructions. You will also need to buy the teabag papers themselves. If you need any more information, please feel free to pm me.