If so, please tell me a good one or good ones to carry. If you need to know any info about me the basics are that I'm always anxious and part time depressed. maybe a touch of A.D.D
Definitely get a clear quartz. It is an amplifier and will increase the energy of other crystals and stones you use. I have that and a rose quartz for inner feelings and peace. I also use mala beads made from chakra stones. They are very helpful for me.