What non-surgical procedures would you recommend to fix my small mouth, extra skin around my mouth & overall angry look? (photo)

I think when I smile I'm a very attractive person (not photogenic as you can see), but when I don't smile, I am really unattractive. Could you recommend what areas, what product, and amount of injection suggested to help me not always have to smile? I'm 38 years old and would prefer not to have surgery yet.