This is not necessarily true, is it? Like me, I practiced for several years, and I got a lower grade a few days ago ~ in fact, I don't think it is necessary to take the exam. Grade certificate is definitely not your capital to show off, you should take the exam as an assessment of your ability! If you are in such a state of mind, you can try to take a test and see how you are now, which is also an objective cognition of yourself. So, it is necessary to pass the exam, don't you think?
Thank you, welcome to ask, hope to adopt!