The reason I asked if you want to be 'pretty' or 'accepted' is because they kind of mean the same thing. In some places in Africa "pretty" means distending your lip with a huge disc, or stretching your neck with rings. In China it used to mean mutilated tiny feet. "Pretty" means "meeting the current standards to be acceptable as a female." Pretty is such a low bar, darling. You can be so much more than pretty.

You ought to be comfortable in how you look. Something I like to do that helped me separate what I like from what other people like is to imagine myself in the Zombie Apocalypse. What would I want to look like than, with no other people around? Of course, how you look isn't the most important thing but you get to control it, so in what way would I want to control it? I think i'd want to wear leggings with a heavy skirt over them - comfortable and good for mobility. I'd wear boots, a singlet and jacket or vest, and keep my hair relatively short. I might wear rings or bangles, because i look at my arms all day, but i definitely wouldn't bother with make up. It's just an exercise to help you distance yourself from either complying with or rebelling against other peoples expectations and get closer to who you REALLY are and what you really like.

Hair is just hair. It grows back so go crazy with it. Worst case scenario, you wear a hat for a few weeks ;)