I must echo the others sentiments. Very simply, you absolutely cannot feel normal after one week of sobriety, nor can you feel as good as you're going to feel in the near future. It's going to get easier, trust us on this. Stay strong, you're doing awesome!
And btw, there's a reason that the AA motto is ...
ONE
DAY
AT A
TIME!
When you feel yourself getting overwhelmed by the sheer scale of 'a lifetime of sobriety', you have to STOP THINKING THAT. Focus on today. Who knows what tomorrow will bring. You are gonna stay sober TODAY. That's really all you have to do, if you think about it. Cause ... it's kinda ... always today!