I don't know how to train my plant, so please...

It all depends on what kind of training you want to use. there are alot of different ways to train a plant from topping to low stress training. personally i like lst as it does not stress the plant to much. wait until your plants are about 4 nodes high and tie them over to the edge of your pot with some sort of string or cable. the idea is to keep the plant all one level until it flowers. there are alot of great videos on youtube showing how to do this. if you look at my mystery strain grow you can see how i did lst to my plant and how it looks. good luck