Hey, welcome in and congrats on the first day!
For time, whatever you like. Something creative. Something to help you grow. Something you couldn’t do when drinking/using.
You can check in here on the daily with how you’re doing and hear from others:
You could check out recovery meetings. AA for example has a lot of open meetings where you can meet others who want to live sober. There’s also SMART meetings though they’re harder to find.
I met a lot of sober folks in AA, started exercise and hiking again, and took up some new hobbies with my sober time!
For drinking, I found the first two weeks the hardest. But within a week I already started to feel better. That varies depending on habits, but just remember, it will pass if we just don’t drink today.