I Really Don’t Want to Be the First

After many reincarnations and repeated deaths for verifying, Xu Xiaowen found that he had the BUFF to be the best for whatever he did. But he also realized after that he would die violently on the same day. So in this life, Xu Xiaowen made a wish - he must be a loser and try living to the age of 80. Yet the heavens have played a joke on him again, he is actually an almighty superpower man?