How do you build your confidence up after you get sober ?

I noticed people complimented my cooking if I was a bit buzzed on wine while cooking those meals. Or when I pregamed for my presentation or writing my paper, I noticed I got higher grades. My normal self was scared to overdo something, couldn’t speak up in class and I hated how I had to rely on alcohol. I wasn’t blacking out drunk and doing embarrassing stuff type of drunk . But I was drinking a lot to even do basic tasks. And I am scared that I am back to very socially awkward self during sobriety.