People who make mistakes, may get called 'accident prone'. Yet there can be many reasons why some folk fail to accomplish what others manage to do all too easily. Creative individuals, for example, may decide to experiment. In their quest for better alternatives, they may inadvertently stumble upon worse ones. Had they only been left a little longer to pursue more imaginative options, they might have easily compensated for any damage that they had done. Your experience in a key field is an asset now. Don't doubt that.