To the OP:
(continuing my previous post)
Most important of all, however is realizing that we're human, and that there is no real chance that a big downswing will not affect us emotionally and interfere with our ability to think, thus making us increase our own downswings and prolong them by thinking less rationally.
The consequence of that is that whether you were a bad, good or very good winning player before a very big downswing, any claims about your game after it has ravaged your mental state will probably no longer be true, and most probably your results are being seriously affected by your emotional state (which is evident in your posts).
Also, you seem to rely solely on HM (and of a few hands you posted...) for saying you're on a huge downswing. More hands won't help either... HM is not an automatic leak finder for SNGs, nor was it ever meant to be. Some good player/coach (pokerstrategy coach maybe?) looking at your database can help a lot.
Ego won't help either. Like saying that any average player would have been destroyed by such a downswing, for example... is just making sure you cannot progress and go through it. Progress and learning can only be accomplished by recognizing that MANY of our losses are largely due to bad play by us, EVEN during a downswing.
Just learn, improve, find your leaks, use a coach, videos, other very good players if necessary, and hopefully you'll find yourself a much stronger player, with shorter downswings.
I wish you the best of luck!