for the most part, this is how I write journals: in languages I don’t know. For some reason, it works for me. I sit with the computer open to an online dictionary, translate the words I don’t know, and write whatever I’d like to write regardless of how complex the concept is.
it does two things: teaches me some sorts of language to tell stories- “first I did this, then I did that, and tomorrow I’m really excited to go to…” and it also familiarizes vocabulary that is relevant to my life.
One bad habit it reinforces is using english grammar habits in another language, or just guessing at the correct grammar.
I can’t actually speak either language: but were I to spend a few weeks in thailand or an arabic speaking place, I’d have a head start on reading and writing.