But not all at once, please. That's terrifying for even an experienced teacher. First guideline State whether you wish to write only in your native language, or only in the new language to be learned, or half in half. Ask your partner's opinion. Then stick to your decision.
Second guideline Making mistakes is part of the learning process.
But it is hard to correct tactfully every mistake your partner makes. So you must understand that it will also be hard for anyone to correct you politely. Decide together how you will do this. Perhaps ask for an explanation of one mistake your partner finds important. I would suggest that a maximum of three corrections for beginner or intermediate students would be enough to cope with.