What is the amount of words you have? Obviously it is difficult to know exactly. But there's one site that's interesting. Three steps to measure your word count. The process is very simple. And it seems that the results are quite accurate.
The name of the website is "testyourvocab"
The URL is http://testyourvocab.com/
Step 1: Tick the words you think you have mastered.
Step 2: The website will be based on the results of your first step. Another batch of words for you to tick. Still tick the words you have mastered on it. Of course, different people, the words displayed are definitely different.
Step 3: Answer some questions, similar to a questionnaire. For example, age, whether English is a native speaker, and how long you have been learning English. In what scenarios are English used. It also includes information such as academic qualifications and regions. Just choose one by one.
Finally, the website will give a word volume test result.
If you find it interesting, you can test it a few times. I almost know my word level.