There are more than a few people on this board who write decently.
I would suggest first thing you do is just start typing out all the stuff you can think of. It doesn't have to look pretty at first as your just getting your thoughts down. Make sure to try to use good grammar so that we can see what it is your trying to say. If it's just one big gigantic run on sentence it will be difficult to understand what your trying to say from one point to the next and if you don't use paragraphs or commas or periods or other punctuation then it will be difficult to understand what you are trying to say and if your speelling is poor then it will be difficult to understand what you are trying to say.
Seriously, I would suggest using a data processing program of some sort such as Word, or the Microsoft Works Data Processor. Click on the bullet points button, and press enter between each thought. That way it puts your ideas in seperate bullet points, making it easier to sort. The important thing is to get your ideas down first (what you want to say (good way to vent)), while keeping them easy to sort. After you do that we can polish it up some.