I'm sorry you feel that way. It must be hard to tolerate. It is however, no different to being obese or being bald or having a disfigurement. I'm overweight, always have been. I'm 63yo and about 3 years ago I went on a diet, lost 15 kg and felt great- since then piled it all back on again. So a few months ago I decided to accept that this is how I am, if I can eat healthy and exercise a little that is good enough. I no longer dream of the day I'll be slim.
The reason for this change of attitude is simple- I am being realistic. The same realism for you would be to say to yourself- nothing I can ever do will change the height I am. So, I will accept how I am and move on regardless.
To do this needs some help though. I found it in motivation. How? Well you can introduce some activities in your life- eg attend motivation lectures, read books or on the www on how to motivate yourself and study positive thinking methods.
I've written a few things to do with this topic that will get you started. Simply google these and read the first post.
Beyondblue topic 30 minutes can change your life
Beyondblue topic the frog and the scorpion
Beyondblue topic focus and never ever give up
Beyondblue topic motivation- search and rescue it
Beyondblue topic being positive- what's the secret?