Secondly, the above statement does not mean that math and computer programming need not be supplemented. If you don't know anything about these two aspects, then your article can't reflect the main points of the other two, and your work will be discounted.
Therefore, I suggest you take part in the training of mathematical modeling all the time. General school training is about 10- 15 days. You should attend.
Third, the purpose of your modeling training. Your goal is not to learn all the mathematics and computer knowledge thoroughly, but to understand the general ideas and steps of each method, especially the essentials. In this way, you can reflect the main points when you organize to write papers in the future.
I wish you success, good luck and another grand prize!