Take the initiative to make the boss angry and blame himself.

It's been two years since I graduated from college, and I've made similar mistakes. I can understand your feeling.

I got up the courage to admit my mistake to my boss, talked about my feelings and sentiments, thanked him for giving me this lesson, and hoped that he would continue to help me make progress.

In fact, this is an attempt by young people to express their desire. I'm sure your boss will also understand that he will only criticize you for this matter and will not doubt or deny your future performance.

An enterprise, mainly considering profit, will not change because of your words, even if it really fails, saying it's your fault is just an excuse. If it is really beneficial to both sides, it will never be affected by your words. At ease!