Im glad you are doing well too
just take it one day at a time, don't beat yourself up for having a couple beers. Generally speaking, those of us with addiction issues aren't great with handling alcohol either though.
Addiction is a cunning, powerful, and baffling disease, and it may try to suck you in through the drink, so be careful.
For me, a drink will only lead to hunting down drugs. Guaranteed.
Recovery is a whole process, it is not an overnight thing. It is a lifestyle, and as long as you just focus on the next 24 hours, you have a chance at sobriety. Forget about the past, and don't think about tomorrow.
It is good you have a sober friend, I recommend finding sober male friends too though to hang out with.