Blog as you learn
So I’ve written – and spoken – about how we should all be blogging as we learn things. It’s a good idea for many reasons, some selfish and some altruistic. But I’ve always said: you really should try and write as you learn something. It’s when you’re best able to describe and bridge the gap between ignorance and understanding. As you experience the learning process.
ashfurrow.com/blog/contemporaneous-blogging
It's easier to write about a topic when it's fresh in your mind.
If you mean to write about something later, it can easily become an item on a todo list that you're likely to put off and not get to.
If you're able to fit writing into your schedule - please try to.
Even if you keep it private, writing is a wonderful way to document knowledge and gain a deeper understanding of the subject. I encourage you to try it out, even if writing hasn't been a strength for you. I have faith you'll produce something of value.