when it comes to hair, you have to make sure the hair style looks good on you and your face shape. if your face is longer, long hair is best. if you have a short, more plump face, short hair would look good on you.
you also have to be committed. if you get a shorter hair style, that takes some styling. you can't just wash it and go, you have to take care of it, use products, and maybe even heat style it if you have to. if your hair is like mine and turns super curly and floofy when you get out of the shower, you'll have to style it to your liking.
if your going to dye your hair, dye it colors that match your aesthetic- if your aesthetic is vintage, than natural colors are best. darker colors are best for grunge, and light pastel colors are best for vapor wave.
Here are some other ideas-
•messy bun/ponytail
•beach waves
•floofy pixie
•space buns
•bangs