As a junior high school student, your life experience and thinking comprehension ability are not mature, which will hinder you from pursuing true knowledge to a great extent. This is not to question your ability, but to illustrate a process of growth.
At this stage, if you read the ancient prose directly, you will find it obscure and difficult to understand its essence, which will not help except to reduce the enthusiasm of learning the thoughts of the sages.
If you start with some explanatory and critical articles, you may be influenced by the author's thoughts, misinterpret the original text, or have a frivolous understanding of the original ideas, and gradually become complacent. These are not conducive to your pursuit of the true meaning of a hundred schools of thought.
So I recommend you to read some reading guide books at this stage, such as the classic reading guide of Chinese studies. There are many kinds of books, so please pay attention to screening and select some introductory reading guide books from a historical perspective to give you a general understanding of these complicated ideas.
On the other hand, you also need to keep learning history and deepen the accumulation of knowledge. When you have a deep understanding of the historical background and social environment of these ideas, you can choose an idea you are interested in for in-depth research according to your personal likes and dislikes, so as to achieve the in-depth and objective understanding you want.
Your idea is good, but the road is long. Only by keeping the accumulation for many years, until the accumulation is thick and thin, will you find that your appeal has naturally come.
The answer may be a bit lengthy, but learning was not built in a day. I hope these suggestions are helpful to you.