Honestly though the lesson kind of is both things if you're a woman. There's just too many folds down there to completely remove all the hair yourself with a regular razor and no mirror or assistance. I really recommend either using more of like a beard trimmer (they also make bikini trimmers for this) which will make it much harder to severely injure yourself or just waxing if smoothness is necessary for your personal style/hygiene needs. It's really dangerous to cut your labia as you've learned OP. I hope you feel better soon. Between UTIs and different sore type things i can imagine how you must feel and it does hurt literally every time you pee. I'm so sorry. 💜