you might be experiencing PAWS (
Why We Don’t Get Better Immediately: Post-acute Withdrawal Syndrome (PAWS) | What…Me Sober?).
please do not get scared of some of the things you read, because certainly not all of them will be applicable... but it's good to be aware.
you will have days just like this, then better, then maybe slightly worse. continue on the sober path, however. you don't want to be right back where you've started.