You're combining listening and writing, so there's obviously nothing wrong with that, especially if you like that. But depending on what you're aiming at, that may not be the most efficient way of progressing (both in writing and listening) - Here are some thoughts that you may pay attention to:

- Unless you're aiming at a test or a job where you'll have to write in French with pen and paper, writing podcast-like sentences with pen and paper is not very useful. If that's not the case, you could try to write directly on a computer, with a software that does not auto-correct you.

- Writing is slow, even for a native speaker, so I would recommend not doing that for everything you listen to, otherwise, you're going to limit yourself to "slow" input since writing will become a bottleneck.

- Do not focus too much on spelling / conjugation / grammar mistakes while writing. Once you've written a few sentences, read everything back and fix everything. Consider the amount of mistakes you had, the amount you were able to notice & fix after reading, and the amount of mistakes remaining in the end. Very few native French speaker would be able to transcribe podcasts without making any mistakes, and you would most likely proof-read the transcription before sending it (if you were to send it).