Learn your basics, Study them intently so you may understand how spells work, how to enhance them, and help you feel more in control with them.
Google search and read up on
Spiritual uses of Herbs,
If you cannot find it related to the craft, add terms onto your search such as 'Magick, Witchcraft, Pagan, occult' etc.
Study until you memorize these.
If you cannot tell what phase you should cast a Wealth spell on, and with which color candle, you're not done studying.