After 5 quit your state of mind is greatly effected at that point. It becomes chasing a win at that point kinda like gamblers want 1 more game because "it's the one" . I recommend a limit 3-5 it's not your night/day, come back with a fresh start/state of mind. But I could be wrong I'm not a Dr.
There WAS progress. Losing to decent people makes you learn more than if you were to win against mediocre ones. You may not realize it but you got something out of those sets.