Slight overbite and weak profile / lower jaw, can it be corrected without surgery? (photos)

My lower jaw used to be very weak, and it made my profile look bad (weak chin, big nose). After 3 years of wearing braces it got better, the jaw is not as weak as it used to be, but I'm still not satisfied with it. I still feel like I have a withdrawn lower jaw and weak profile. Since it's not a huge problem, I don't think surgery would be a good idea. Is there any way to correct this? Braces again? I don't mind the overbite, I actually like it. I just want a stronger lower jaw. Thank you!

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