Learn all the knowledge of music theory, is it possible to write songs and compose music in the next step?

Hello, people who love music are all people who love life without exception. Congratulations!

I'd like to put forward some personal views on your question for your reference:

Mastering music theory is only a necessary condition for composing music. But there is still a lot to learn. For example:

1, must have a certain aesthetic quality;

2. Solfeggio, hearing training and knowledge of music and harmony;

3. Some necessary music knowledge.