Hi Amanda,
Welcome to SR. Eight years of sobriety is huge, don't let this little slip take you back to where you were 8 years ago. I am new in sobriety, but it amazes me that people that have been sober for years still face the same issues us newbies do. It is a great reminder to us all. I know that this is a lifetime battle that we are all going to have to face, but there are many of us to help each other though.
Take Care.