rejuvenated
If you feel rejuvenated, you feel younger than you actually are. Sad part, it's all in your head and might turn out to be embarrassing for others.
Example:
Mom: Let's go party tonight! I had this massage and feel so rejuvenated. C'mon, we could both check out some guys!
Daughter: You're embarrassing..
Mom: Let's go party tonight! I had this massage and feel so rejuvenated. C'mon, we could both check out some guys!
Daughter: You're embarrassing..