Wanted to Feel Proportionate

I started as bra size 32 A. I got 350CC high profile, smooth silicone Mentors. I'm now a 32 DD and can fit (snugly) into a 34 D.

I'm currently 3 months post-op and they're fantastic.

I don't want to put them out there, but I'll be happy to PM the progress photos I've taken.

I'd say I could give a few important pieces of advice. The most important would be to make sure it's for yourself. I think a good indication of whether or not you're doing it for the right reasons is how you'd view them. To me, they feel like the best clothing accessory I've ever spent money on - just like any woman would feel more confident and pretty wearing a great-fitting dress with perfect accessories. If the mindset is, "this will get me a good partner/spouse" or "this will make all my problems go away," I feel like it's not the right time to get the procedure. You'll just have the same problems but with bigger boobs.

The second is two parts - the first is pretty obvious. Go to a surgeon who's been in practice for a long time who has a good record of handling cases of all shapes, sizes, nationalities and patient needs. Also one who's anesthesiologist has a good record as well. They will likely be in the higher price range, but this is your body and they will be putting you to sleep, cutting you open, putting things inside you and closing you up. They may even run into problems while you're in the operating room and a good, experienced surgeon will know how to fix them and a good, experienced anesthesiologist will know how to maintain your anesthesia during all of that.
The second part of that is to make sure you feel good about your surgeon, their facility and their team. If your consultation leaves you doubting them in any way, consult with another one. You need to trust not only your surgeon but all of the working parts of the machine that will make this happen for you.

Bring in photos of the look you want. A good, experienced surgeon will know A: if that look will work for your body type and B: how to achieve that look. You can want a specific cup size but realize that for the look you want, you would be a different size. I thought I wanted to be a C-cup and that anything bigger would look awful on me. It turns out, that for the look I wanted, it just so happened that I've ended up being a DD. And it looks great on me. I'm proportionate, they don't look fake and they look almost exactly like the photos I showed my surgeon and I'm only three months post-op.

There's a ton more I could advise, but I'd say these things are the most important.