Are you in Al-Anon or individual therapy or have a wellness routine for yourself? If you have a wall up five months after a year long relationship, you are still quite hurt and much of your turmoil likely predates that relationship. I broke up with my ABF about a month ago and I'd be completely lost without the emotional support, education and structure of Al-Anon and therapy. I realized that being with an alcoholic didn't come out of the blue, but rather magnified a lot of issues I've had all my life - even though he was the only active alcoholic I've been involved with.
There's no need to white knuckle it on your own, hoping that time will heal you. Lots of support is available so that you can not just pass time, but learn, grow and love again.