Hi, I guess the thing with SI is you have to want to stop. Really, really want to stop to stand a chance in moving past it!! Although there can be a whole lot more (!!) to it than that, without that it's unlikely to happen whatever.
Now if there's something/anything that you might be able to find (if not right now, then at some time) to lead you to that point............
It is definitely worth talking to someone about the depression though. I mean you'd want to walk away from the consequences of that building any day, right? And in dealing with that it may take you a step away from the SI.
Alison