How to get experienced

Witchcraft is a practice like all other practices and it isn't something you're just going to know everything about in a week. It requires an immense amount of study to learn it, and the best part about it is that it can be used for your whole life and there is no end to what you can do with that knowledge. Because Witchcraft is such a general term with so many different aspects and types throughout various cultures it is nearly impossible to learn everything about it in one lifetime which makes it such an interesting practice.
Anyway, when getting experienced it is important to read about it and try it yourself. Even from reading little things and tidbits of info can add up in a big hurry and soon you will start knowing how to make your own rituals, spells, herbal remedies and you will begin to piece things together to get a bigger picture and make sense out of it more and more. Let's take Silver Ravenwolf as an example. Most pagans believe she is a terrible author and is more in it for the money and fame than the actual practice, but the way I look at it is that there is something to learn from everybody, even Silver.
I try and take a little from everyone to get their opinion and beliefs on the subject, that way I can decide for myself what is right for me and what isn't and have a more general outlook on it than just an outlook taken from one or two people. Either way, have fun learning about it and always try and keep an open mind.

Tarot and divination

The art of divination is to obtain information through ritual or some other form of scientifically unproven method. Some of these methods include scrying(looking into a crystal ball or another object as a focal point, usually reflective or transparent), tarot readings, readings using a set of runes, reading tea leaves, Ouija boards, or many other forms. Those were just the most common forms of divination that I could think of.
The art of divination requires practice and intense study. You won't be able to read a three paragraph article on how to read tarot on the internet and then do a reading correctly, it requires tons of practice as do most forms of divination. Some people spend years studying these forms of divination and though you probably wont need to study it for ten years just to do a reading, the people who do take that time to study and practice it are the ones who will get the best results because they will have better experience interpreting the results. As you do readings you learn from your experiences from examining what the results are, whether they are correct or false and then you can figure out where you might have interpreted wrong.
Before trying to purchase anything you might need for divination, read up a little on it and see if it sounds like something you would really like to commit to. Either way, divination is a complicated form of magick but if you take the time to learn it then it can be very enjoyable and you will most likely be glad you learned it.