Based on your current picture, here are some potential treatment options:
1. A gum lift/ gum recontouring surgery.
2. Botox on your upper lip
3. Upper lip repositioning surgery
4. Upper Jaw repositioning surgery
Its hard to tell which one of these 3 options would work best for you without first examining you and taking dental xrays to determine your upper jaw structure.
It is also possible that to achieve a good result, you may need a combination of 2 or more of the above options.
Just based on experience looking at your picture, it is likely that you have a condition called : Vertical Maxillary Excess.
This means that you have a very tall upper jaw.
Treatment for this condition is usually using a surgical approach to lift and reposition the upper jaw.
However, it is best that you confirm this with a full and proper dental examination and consultation with dental xrays.
I hope you find my answer useful!
Kind Regards,
Dr Gerald Tan