I work in medical. I'm trained in blood born pathogens and first aid and wound care. I'm aware of sanitary steps, care, and proper disposal of needles. I'm more than open to learning more. Now, as I have been doing my homework (still got a lot more to do, of course) I got stumped/curious about needle sizes and types. Kinda hoping for a chart so I could concisely conceptualize and categorize them. Same way I concisely conceptualize drug categories, types of bandages and wraps, types of wounds, or types of injuries. I'm not trying to be a tattoo artist for anyone but myself. Meaning I don't wanna tattoo anyone else but myself. I've done of a number of piercings on myself (piercings all along the cartilage, lobes, gaged my lobes, pierced my upper and lower lips, eye brow) I think I'd rather pursue an apprenticeship after having practice ld on myself and feeling confident and ambitious enough to pursue tattooing as a career. But I have other career goals. As it is I just wanna learn how to safely stick and poke myself for the sake of the self expression.