6 years for me and probably still counting. It helps to find time alone and just think or listen to some music. I don't remember how I got good at faking everything though. Maybe someday I'll confess to someone that doesn't have an account here (if I don't get better before then), but...I don't think I'll be ready any time soon.
I wish I could say that the facade would actually emotionally help but...that would be a big lie. However, it doesn't seem to be hurting me either.