How to fade a new scar?

I have a scar on my leg and its fairly recent. It's red and healing and I'd leave it be to fade naturally, but I'm going to a water park for a week on December 1st and I'd rather have it faded by then.

It's not that bad except for the fact that its long and red. I've been massaging it since I got the cut so its not raised (or pitted or wide), it's just red like I said.

So what do you suggest for fading it? I've heard of Vitamine E, olive oil, Vaseline, stretch mark creams, etc. but which one should I actually use? Several of them? I don't have the money or the means to go to a store for things specifically made for this, so what would you suggest that I have at home?