Premolar extraction - what should I do next after having 2 of 4 removed & face has shrunk on that side? (Photo)

I was advised by my orthodontist to have 4 premolars extracted and I had 2 on the right side extracted last month and I can feel my face has shrunk on that side, I am also concerned about the long term issues of retracting teeth as it will lead to reduced tongue space and a narrow airway, please help me with any suggestions on what I should do next, I am from Chennai, India.