It's true I have a bad trait of being very critical of others, but as I've said I've always gone above and beyond to complete the tasks given to me, so I'm not

It's true I have a bad trait of being very critical of others, but as I've said I've always gone above and beyond to complete the tasks given to me, so I'm not sure what I could have done better... maybe I'm just trying to find excuses for what many have pointed out is just the fact of the matter of the startup landscape (high risk of failure)