V

V.
Having a positive self image is a natural consequence of confidence and confidence isn't something that just pops up on a whim one day and stays for a lifetime (that would be a schnorrer for all those not well versed in yiddish). However, by faking a bit of confidence and not allowing any negative thoughts to slip into your conscious, you can gain the same positive self image.
If you've been following and adhering to the previous commandments then you've already stopped having negative opinions on others and you've stopped giving weight to the negative opinions of other people, so now it's time to treat yourself in the same way. I'm of the belief that all humans are created, should be considered, equal. So if you're going to treat others in the highest regard and with respect, well then you'll just have to treat yourself that way too. It's simple, next time you go to make a negative jab at yourself even if it's just in good humour, stop and make yourself consider something positive instead. Avoid creating a positive thought from a negative opinion, like, "well at least i don't look like her, eheheh." That's not going to help yourself in anyway. Consider how your small bust affects you in a positive way, the times when you feel comfortable, confident or when having a small bust has really worked for you. 
Although this may be the simplest of my five commandments to describe, it is in fact the hardest to implicate and the behaviour that will hold most weight when it comes to finally gaining some confidence. At first you'll struggle and it will be more like an afterthought instead of a behaviour correction. But stick with it. Start with the little things that you maybe take for granted. Don't try and consider some massive overall positive, because it's doubtful that you'll really believe in what you're saying. Pick something like, "I'm wearing a non supportive bra and i'm not experiencing any discomfort," or, "The size of my chest fits well with and suits the rest of my body," or, "i went rock climbing without a sports bra and my bust didn't get in the way." 
When thoughts like that have become second nature then move your positive thoughts onto aesthetics. Comment on what parts of your bust you like the look of. It can sound ridiculous but i personally like the swell of the bottom of my breasts. Don't lie to yourself, i guarantee there's more than one aspect of your bust that you actually kind of like. Think hard and focus on all these individual parts of you.
Following through with this transition of negative opinions to positive thoughts will completely alter the way you see yourself, most of the time and eventually.

Other posts in this series:
Introduction
I
II
III
IV

*This "commandment" is only a suggestion and i in no way pass any judgement on those who chose to embrace different or contradictory behaviours. This is purely something that i, personally, find helpful towards being a more positive and confident person. These are all my own opinions and do not have any scientific weight behind them. I respect everyone's right to an opinion and understand that my own opinion should not apply to everyone else.