From what I see there your coordination pretty much boils down to "Gogogogogogo!". And I do agree that you are indeed a Zergfit. First video shows an overpoped Biolab. A complete waste of your man power to join that fight. But you have probably never played SC then you'd know what Zerg means. Compensating for the lack of tactics and strategy with sheer numbers. Your try to defend yourself only makes it more obvious.