Welcome!
I'm only on day 3 so I don't have a ton of advice yet, but staying active on here has really helped me so far! I keep seeing people saying the first few days are rough, and while I've found that to be true the amount of support on here has been amazing!
There's also people all over the world, so there's always someone online.
I'd check out the sticky'd threads at the top of the newcomers section... lots of good tips in there on fighting urges and how a lot of the people on this board have stayed sober for so long.
Welcome!