A lot of women here are saying not to shave, but for me, shaving was the answer to my anxieties and problems. I hardly think about the hair in those areas anymore because I know that when I shave it, it's not there and no one could ever see it. If you have to shave your legs anyway, like most women, it's not too hard to just shave your stomach, lower back and butt along with it. These areas are not hard to shave at all-- the upper back would be the hard part. It may make the hair *seem* darker or thicker because it is cutting it off at the thickest part of the hair, but it won't actually affect the hair or the follicle, so if you stopped shaving or waxed it would go back to its normal texture. However, because you are so young, your hormones may still be changing, and your hair might get darker or thicker because of that-- but not because of shaving.
For me, I have to shave my legs and stomach every day, and then my lower back/butt I do every other day but I can really go up to 3 days before you can notice anything. In fact I can probably go longer because the "stubble" is still not visible and just feels like dry skin, but I'd rather not. If you don't have to shave your legs every day I would guess the rest of your hair would grow slower. It's not that hard to keep up with once you get used to it. When I first started I was spending 45 minutes in the shower but now I'm down to 30 minutes which is around my normal shower time before I started shaving everything (I like to take my time
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