Hi :)
Here's an article on programming crystals. There's quite a few
sites for reading about stones and their properties, using affirmations etc.
Amethyst is also a protective stone. I started out with an Chevron Amethyst pendant which went with me everywhere. Trust your intuition when it comes to clearing and
charging them. Quartz is great to start with, as you can use running water to cleanse them.
It's a good idea to keep a grounding stone with you or nearby. If your sensitive to the energies then you may just want to carry the grounding stones to begin with ~ build up time with the rest.
A journal is a good idea for making notes, so that you can record how a certain stone has helped. Judy Hall has a book called "Crystal Experience - your complete crystal workshop in a book", which may be of interest to you. If you have a bookshop nearby, then have a quick flick through :)
Smoky Quartz is another alternative to Black Tourmaline. Then there's also
Tourmalated Quartz ~ it's best to trust your intuition when your shopping for them :)
I found
this guide great to start with for picking stones, as it has pictures and not too much information.
Clear Quartz can be used with all of the chakras ~ the bee's knees :)
Hematite contains Iron ~ very protective and grounding.
Rose Quartz is a heart chakra stone. The quartz amplifies this energy.
Amethyst is very popular, as you can use a small bed of crystals to clear and charge other stones (Jewellery etc). It's great for clearing a space for you to work with other stones.
Enjoy your journey with them :)