HI Foxy welcome🙋♀️
Plenty of support here I assure you!
Happy for you that you made the desicion for a better life for you and your son.
Do not try to worry about week one, but focus on today. It a bit of a cliche sentense maybe and you will hear that one here a lot. Why? Because it works 
Today is douable. And if those 24 houres of today is too much to see trough because of the cravings. Focus on 1 hour, ore 5 minutes.
Cravings will come and go, but they won’t kill you. Find distraction by active activaties like walking, working out, clean your house, gardening, etc.
I would suggest to read this thread:What's YOUR plan? It gives you a lot of good information about stages of recovery and how to work with them.
Connection is key in recovery, so be here much! It really helps you.
Maybe considering checking in here daily? It helped me loads with staying focussed on “the job” to stay sober for 24 hours. Just checked in this morning. Feel free to join!
See you around and if you have any questions just ask!
I know this app can be a bit overwhelming at the beginning…it’s soooo big!