I would stick with them to be honest.
Trust your orthodontist...if she's a perfectionist with the little things, that should make you over the moon to have someone that not only does her job, but takes it to a perfection level, so not just good but the best results for your benefit.
And hey braces are cute...a big percentage of the population that wear braces are now adults. Ranging from 20+ - 50+) Things have changed it's now a new generation, so braces are worn by people of all ages. So don't feel bad about that.
And if you think about it, you will be in a brace regardless when you start, you will have to wear the retainer. of course a little less noticable than brackets, but it's still going to be undergoing treatment when you start.
If it makes you feel better I've seen alot in my uni wearing them...And I actually find it cute to be honest. I'm just one girl but still...don't worry so much, those last few months are preparing you for a lifetime of being happy with your teeth...Don't risk anything that doesn't need to be risked.
Hope that helps