"你每天都在更新自己。有时你会成功，有时你不会，但重要的是平均值。"

Simplified Meaning:

Every day, we get a chance to start fresh and try to improve ourselves. Picture it like waking up and deciding whether you will have a good or bad day. Some days, you might feel very productive and achieve a lot, while other days, things might not go as planned and you might not feel as positive about your efforts. Think about a student preparing for exams throughout the school year: some days, they might study really well and understand everything, but on other days, they might struggle or find it hard to focus. What truly matters is not just any single day, but how their efforts add up over time. If they keep giving it their best shot regularly, their average performance will likely be good. So, it's all about consistently trying your best and knowing that both good and bad days are part of the process. This way, someone can stay motivated by understanding that one bad day won't define their overall progress, and it's the cumulative effort that really makes a difference.