A primary reason I have commented in this thread is that it did not seem to me that the questions asked were really issues concerning ‘a dark night of the soul’. The concept has a specific spiritual meaning. As I mentioned in an earlier comment, clinical depression is a different issue. That was all I was willing to say. But the thread as progressed and perhaps I should now say a bit more.
I do have a degree in clinical psychology. Since I sensed something other than ‘a dark night of the soul was likely involved, I decided to comment and suggested that those asking questions might do well to seek professional help. This was not an uniformed suggestion, but I held back since this forum is not the appropriate place for a discussion of these types of issues. Beyond that, in any forum it is only appropriate to discuss these issues in a general way and not with respect to an individual’s unique situation. There are ethical considerations involved. It is why seeking professional help was suggested.
The etiology (causation) of clinical depression is well understood. It involves the physiology of the central nervous system–neurons, synapses, neurotransmitters and how and why anti-depressive selective serotonin re-uptake inhibitors (SSRI’s) work. The brain is a physical organ and together with the central nervous system it is a part of human physiology. Anti-depressives treat a physical anomaly–depression–just like aspirin treats a headache and insulin diabetes. Anti-depressant medications are often effective in treating clinical depression.
The ‘dark night of the soul’ and clinical depression is not the same thing. Not only that, your situation may involve a different issue altogether from clinical or major depression, which I thought was more of an issue for the original OP.
It is not that Catholics do not believe in Hell. What Catholics do not believe in is predestination. There is free will. In some sense, this applies to your situation. You have the free will to seek professional help if you truly want to solve your problem. Spirituality is quite often bound up in various psychological issues, but it is also typically not the cause of what is a medical problem. This forum is not the place for discussion of what is likely not at its core a spiritual issue at all. But you need not continue to despair. I again suggest you seek professional help.