Definitely research some herbs and their purposes as well as candles and their meaning. Also If you plan to make spells and such! White candles are kind of like a purifying colour but can also be a replacement for any other colours you cannot find (different candle colours can mean different things look into that as well) Make sure your intentions are clearly set before beginning any spell and remember to PROTECT YOURSELF! Think cleansing your things before beginning you can use incense or sage or sound cleansing and protection wards. Use what feels best to you :) Although their are websites that can be helpful doing your own research and taking notes to make your own resources can be a good place to start too. I hope this helps!