I think that much of the perception of breast size is in relative to proportion. Although it doesn't show in the picture due to donning a bra I have petite breasts, there are many advantages to having small breasts not least economically and practically (remember that scene in mrs doubtfire?)
Aesthetically smaller boobs tend to be perkier and look 'younger' for longer. I used to detest mine and was embarassed by them, I'm usually a size 12 and for the purpose of learning to make clothes have measured most bits of myself, hips are approx 37", waist usually 27" +/-1, and have always had broad shoulders so being a size 32AA until I was 17 was discouraging! However unlike other features please remember breast size and shape is not set, as evidenced by the fact that many women even lose and gain up to a whole cupsize simply over the course of one cycle.
I am currently a 33" bust and a B/small C cup in most shops but I learned to love them while still a 32A because my OH did and it saddened him that I could not see the same and was convinced they were somehow inferior to the standard(!) issue ones. Learning to appreciate your body for itself rather than what you think it should be brings confidence and boosts self esteem in other areas. Do not allow yourself to think negatively every time you look in the mirror or see a large breasted lady because this reinforces and 'confirms' what you already believe. Often it can be a long road from not wanting anyone to see, touch or notice a part of your body to genuinely thinking that it's pretty good.
As a 'french brested' woman you can run upstairs, it isn't important that every bra you own is in the washing heap, you can try almost any sexual position without getting in your own way and be as enthusiatic as you like without any pain or bra requirement, make them appear bigger when you wish to but be able to revert to natural; many fashions are made for women like us. Personally I live in hippie clothes and floaty things (although broad shoulders are not catered for unless in strappy or stretchy things).
Do you have decent collar bones? Or good skin? I like to think we have a quota of particularly 'good' and aesthetically pleasing assets and that these are distributed evenly but differently (idealism right there)
Partners do not tend to love you despite your 'faults' as they are a part of you, and the man has chosen you, in fact by disliking yourself you are inferring that he has bad taste! Most are just happy that a real woman is letting them ogle, suck, kiss, feel and play with their boobs in any way however ample or small they are rather than sitting back and critiqueing; points are not awarded for size, shape, angle, andwhether or not they match.
chemise type things and babydolls etc are a god-send for women like you, AdnaW, Tigerlilies and myself (and highlight erect nipples in a way that will distract any straight male! If you really want sexy bras in a small size other than primark stuff there are plenty on the sites below, also not that la senza make everything in tiny sizes. Hope that youget on well and confidence improves :)
aabras.co.uk
www.knowknockers.co.uk
www.daintylady.co.uk
P.S. Welcome to the forums x
