First time virgin hair dye tips

Kristina • I'm 23 years old, Currently single and not TTC. I joined Eve to help track my period and talk in the groups😀
Hey ladies! I've been thinking about having my hair dyed for the first time in my life. My hair color is naturally black or very very dark brown. The texture is wavy and a bit poofy (but not too frizzy) length wise, it's a bit past my collar bone. I want to have my hair dyed rose gold. I'm planning on getting consultations at two separate salons.. One at Ulta and one at a local salon. I know to show the stylist photos of what I want but any other tips or precautions. 
P.S I would upload photos of what I want and what it looks like now but I keep on getting errors :(