Is your hair virgin?
Anytime you lighten your hair, you are damaging it in some way. What matters is how your hair reacts to the damage. Some box dyes contain "boosters" which allow color to take better to jet black hair. I do notice that they cause slightly more damage because they are able to lighten your hair faster and lighter. Because your hair is black, I recommend Textures and Tones because it's formulated for dark hair and is pretty gentle. And yep, permanently lightened hair requires a lot more maintenance especially about 2 months down the line when your ends are older and more porous. My virgin hair does not get splits/thinning ends while my colored section does. I saw my first split end in over 2 years last month! '
I honestly recommend lightening a section of your hair, see how it reacts for 6-8 weeks and if it's still healthy, dye the rest. I'm happy I did that instead of dying my entire head at once because I was able to see how fragile colored hair can be without the proper moisture/protein balance. Even though now my colored section is pretty strong and healthy, I can't imagine if my entire head was that difficult!
ETA- I like textures and tones also for beginners because the medium browns come with developer and the color figured out for you. As long as you stay away from the blondes, your boxes won't contain the "bleach" booster. But as
@ag00 0 said, you could buy them separately at sallys and mix your own.