I think it depends on what your goal is. I was not a good recruit during training. My ability to use the gear was middling at best, and I was often last in class whenever we did anything physical. Our instructor told me I was just going to get in the way on the field and to hurry up and drop out nearly every day. But I had something I wanted to achieve, and there was no other way to achieve that, so I kept at it.

Aren't you the same? Not all of your business ideas have... worked out, but that doesn't keep you from trying again, does it? Because there is something you want that is bigger than those failures.