black hair struggles I've been experiencing recently....

hi imaginary audience...
literally i cannot as of recently. every hair color is so hard to maintain... but especially black hair in the SUMMERTIME after you did a light color. omg. Nobody talk about how hard it is. My hair was jetblack for like... a couple week. but after those weeks, I saw my hair progressively get.....lighter????? it's starting to show up more like a dark brown now. and it's really annoying. I dyed it black so I could give my hair a break from dying since my natural color is black... "oh yay I won't have to do anymore touch up!!" THIS WAS DECEPTION AND I NEED TO DYE IT AGAIN

(I won't but yeah) it's so annoying. If anybody knows any tips to maintain jet black hair plz leave me a comment... vvvvvv