For me, I have the classic 2000s emo haircut. I cut my hair at home since I don't trust hairdressers with such an unusual haircut after hearing many horror stories of emo hair being butchered by "professionals". In terms of dyeing my hair, I currently have it dyed pink and black (my natural hair color is light brown). I have to bleach the roots of my bangs every 2 - 3 months since my hair grows pretty fast and redo the pink and redo the black portion of my hair around the same time. The pink hair dye I use in my bangs is semi permanent whereas the jet black dye in the rest of my hair is permanent.
For styling, since my hair is naturally wavy, I start my hair straightening routine by using the Function of Beauty straight hair shampoo and conditioner. Then, I start rubbing my hair dry with a towel before I start brushing my damp hair straight until it fully dries. Finally, I straighten the rest out with a hot comb, and continue to subject my hair to heat every day until I have to wash it and repeat. In addition, I also tease my hair, though it always falls flat by the end of the day. I wish it would stay teased all day before having to brush it out.