I hope you find the courage! Is it like a mass coming out day, or are you just telling certain people? :L
If I were a betting man, I would put money on your coming out before then. Now that you've decided to do it....just do it. End your suffering. You'll be glad you did.
That's what I did. I decided I'd do it before the end of summer. I ended up coming out to my parents less than a week after that and a friend about a month before school started. It gets easier each time.
I set my date last year on new years day... but I couldn't do it... as my bio says I have only told my mum, sister and 1 friend... Don't rush it! It will just happen when you are ready, don't try and commit yourself to a date, it doesn't work like that dude!