Your idea is not naive. Of course it can be achieved.

But because I have passed the training, most of these short-term training can't achieve the expected results. Basically, they charge tuition. You have learned very little. The best way is:

First of all, you should like it.

Find a good gym and practice for three or six months to absorb more knowledge.

You can learn more about your professional knowledge while shaping yourself.

After learning, you should practice. You have to.

Textual research, communicate with the coach and feel that the conditions are ripe, and then take the exam.

I wish you success! ! You can do it! !