It is not normal for such a minor difference to affect your self esteem. There is no surgery that will fix this tiny bit of asymmetry. Any surgery that you might have a surgeon agree to perform is likely only to harm you. If you are suffering social consequences from this insecurity (avoiding socializing, avoiding work, spending hours a day preoccupied with thoughts about this) you need psychological help for this. It may be you are suffering from body dysmorphic disorder. Trust me, it is easier to find someone to operate on you than to deal with your feels. However, dealing with your feeling in a constructive way is precisely what you need to do. There is professional help out there.