编辑下面这段英文文章，使其更具可读性和流畅性，同时保留其原始含义：
文本: Despite the fact that he worked hard, he failed his driving test. It was in spite of the fact that he had dedicated many hours to practicing, but he still made some mistakes during the test.
Although he dedicated many hours to practicing, he failed his driving test due to making some mistakes.