Breast Reduction. Should it be an option??

Breast Reduction is the main question I ask myself these days. Whether or not I should get it? Whether or not I'm even qualified to get one? And will I be satisfied IF I were to get one? I used to love the idea of having a big bust as a child. Mainly because I was always idolizing my mother for her good looks and constantly rushing the need to be a woman already. Now that I have a big bust, all that goes through my head is "they're getting way too big" and it's a hassle. I can't wear certain clothes and sitting up always needs to be a reminder on my part. My bust are even starting to sag along with some clear stretch marks which are becoming more prominent by the week. I'm not going to lie. I don't like my breast. I feel they don't fit me well and I've always  been insecure of having too big of an areola. But as I pay more attention to them I notice the haggard effect it has on me. I easily feel suffocated at certain moments and even feel the taut pull it has around the skin of my neck, almost as if I tied a halter top way to tight and it's putting pressure at it. I naturally sit in a hunched position which I know is bad but when I straighten, I get a certain type of pain at my upper back. My bust aren't even that big though they have been growing. I used to think I was a 36C and I still wear that cup size now. However, when I do my breast can't even stay in correctly.   So, I resort to sports bras. I've tried on a 36D and they fit pretty well but have a slight space to it. I don't know if that's good or maybe I've gotten used to wearing tight bras or I should try on a smaller numbered D cup. My friend once commented how I'm most likely a D because my breast already looks as if they're about to pop out of my bra which most of the time they do when I lean over even a little. And she herself has waaaaayyyyy bigger breast than me (past a D). I've already done my research on breast reductions and even watched a full video of the procedure. I wouldn't mind the scars but I still worry about how it will go or turn out. Mainly because I've never been through surgery myself. I've read comments about how many girls have considered it and waited too long to have it lower then a D as they're breast have grown past it over time. Seeing how my breast aren't even past a D and I'm already feeling like it's affecting me most of the time. I'm not sure whether or not I should speak to my doctor about it. Exercising only goes a long way and I feel it won't really help much. I don't want my breast to grow any bigger but I'm still having a hard time on making a decision. I'm 17 and my mother doesn't mind supporting me and my decision mainly because she has big breast herself. Plus, I don't know how it would effect me both mentally and physically afterwards. Any advice???