Creating a white light protection bubble to shield me from emotional energy has not been something that I have been able to do. For some people that comes very naturally. But for me, that's a next level skill that I have not yet acquired. However, my body and mind responds well to protection crystals and stones so I've had good luck there. I'm a bit of a crystal nut as I probably have 35 different types that I keep around for various reasons. Some cheer me up after a bad day, some help me sleep better, or relax etc... But my go to stones for walking out the door are always the same (dark protection stones like black tourmaline, onyx, shungite, hematite). I also love labradorite, lapis lazuli, and selenite.
But picking crystals and protection stones is kind of like inviting 30 people over for an ice cream party and trying to guess what everyone will like. We all seem to have our various favorites that work best for us. I would say the only consistent favorites with empaths seem to be the dark protection stones like the ones we've noted.
When my crystals and stones aren't working right I start getting headaches and fatigue more often. Sometimes that leads to anxiety. Good to hear that you know how to clean and charge your stones. I mostly use sunlight for that but also find letting them bathe in salt water for 8 hours also works well. In fact, I kind of sense at times that I wear some of my stones out despite setting them in sunlight regularly. A nice salt bath seems to give them a different kind of refresh and is good to do every once in a while. Just do a little research since some stones like malachite and selenite start to dissolve in water and get ruined.
I used to be an emotional wreck living in my large city. Discovering and experimenting with crystals and stones was a game changer for me. I can now pretty much go anywhere in large groups of people, or even angry environment work meetings and handle it pretty well. I have my dark color protection stones to thank for that.
On your comment on attachments, I have had similar problems where I have dealt with attachments or ghosts trying to enter my aura quite regularly over the years. Everyone says keep your vibration high and they won't bother you. But it's near impossible to always have a high vibration. And I was just reading from a reputable source that empaths attract attachments as easily as a low vibration drug user or alcoholic. And the reason is that the way we empaths open ourselves up to take in energy also makes us easily accessible to attachments. As a result, we really do have to be vigilant in protecting ourselves on a daily basis. I had an especially bad attachment a few years back that I was able to defeat. And I seemed to be able to do that with a lot of rest, salt baths, and the use of black tourmaline, onyx, and shungite. In fact, when I added shungite to the mix, I had a bizarre experience a few days later where an angry attachment left me in a rage by throwing things around my office. Things literally levitated and were thrown across the room shattering on the floor. Ever since then I've kept the tourmaline, onyx, and shungite close at hand.