Has anyone in their 30s with thin skin seen results from Density High 600 Shots without sunken cheeks?

Now that I'm past my mid-30s, I can see the jowls around my mouth and my jawline becoming dull, and my overall skin density dropping, making it look sagging.

I was afraid of losing facial fat with Ultherapy, and the price of Thermage was exorbitant, so I decided on Density High, which combines monopolar and bipolar technology.

My skin is thin and I don't have much fat on my cheeks, so my biggest concern is that if I get all 600 shots, my cheeks might become hollow or my skin might look sunken.

It would be incredibly helpful if those of you with thin skin like me could share your experiences regarding how you adjusted the cooling level or energy intensity, and whether there is a significant difference between the 300 and 600 shots!