Paranoid

So I just found out a few days ago I'm expecting - I'm about 5 weeks now give or take a couple of days - and two days before I found out I had a few too many glasses of wine , I was a pretty regular drinker but haven't had a sip since I found out I was pregnant. But it still worries me I could have done damage to the baby :/ also I've been weening myself off from smoking (only had 2 today) and I'm starting to feel paranoid and guilty about not doing it cold turkey :/ I eat pretty healthily and have been taking prenatals religiously too, any advice or similar situations out there?