Maybe my lower teeth has been over corrected after wearing invisalign for 3 years. How do I correct this? (Photos)

I wore braces for 2 yrs for overbite The past 1 yr, I wear retainers only at night. I'm happy with my smile,.but I think lower teeth went in too much (asked to wear invisalign for both up & lower- not sure why), so my overbite still remains. The problem now is although my smile is ok...1. my lower lips seems to go in making me look older, and 2. When I talk, only my lower teeth is seen. How can I correct it now. Also, I notice that some of my teeth are kind of loose. What went wrong?

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