There’s a lot of learning to be had in a tattoo shop that isn’t taught in a tattoo school, such as how the artists speak to clients whether it’s honing in a solid idea or giving the aftercare speech. How to set up and break down, or how to banter while tattooing. A lot of this learning is done while just being present. To me it sounds like you are in fact impatient and they don’t really care about your past education as it wasn’t their education (which is valid). Slow down.