Great job on Day 5!!
I was the same, I live on my own and used to drink on my own every day after work, so when I quit drinking, I had a whole lot of time on my own and was bored out of my mind!!
Sobreity though I realised is more than simply not drinking, it's about revolutionising a lifestyle, I needed to get out there, find new hobbies/interests and meet new people, slowly begin to carve out a new Sober life with new activities and new friends.
Sit and think about what you wanna now do with your life and go from there, it won't happen over night, but with small steps you can meet new people!!