I had a few really rough months head-wise and emotion-wise and things really didn't start to get stable and crisp and on the constant-improve until maybe 8 months or so.
And even that took work. AA, SR, counseling, journaling, some meditation, life changes, writing, patience....
It does get better. You've given your body and mind a long beating. It takes time to recalibrate, reconnect, totally process the haze out and adapt to new neural connections and perspectives and versions of reality.
Hang with it.... you'll be so glad you did.
