Welcome friend. I've been through similar experiences as you, started drinking when I was 18 and never looked back. i'm 26 now and finally going sober for good. I'm going through a similar re-discovery; I don't remember who I was or what I enjoyed doing before I found drinking.
In one sense it is fun to do this rediscovery but on the other hand, it is terrifying.
So, hang in there. You're not alone.