I have used this idea before and so have started a new thread which I hope others can contribute to.
The idea is that you write a letter to someone telling them something that you feel you need to say. You never need to send it, but it is an opportunity to get it off your chest. It can even act as a practice for things you want to say.
Please feel free to post whenever, and ask for advice if need be- it would be great to make this a community idea as well. I will probably post relatively frequently, but dont let that dissuade you from sharing.