I see this as somewhat physiological but if you experienced the low test BEFORE you and your girlfriend broke up.... It's probably the OTC product you ran.... did you run a PCT?? Maybe I missed it but I would say that's a pretty big factor in your situation. If I were you I would get 2 bottles of Unleashed, and run that double dosed. While you do that you need to take Steve's advice and do the meditation/yoga, etc. All of that with the combination of Unleashed will certainly help. If you never ran a PCT, maybe a full PCT with Clomid would help.
You need to answer ALL of 4T's questions... This could be something that is just obvious and you could get the perfect solution... A PCT could help TONS if you never ran one or ran a shitty one.