I think your story has a lot of potential, Kurt, but here's what I'd do....
I'd read it one more time, then I'd go do something else besides sitting at the computer in front of what you just wrote. Then, while your busy, tell yourself the story again. Try to add things to it that you want it to have, and do it so that it's compelling to you. Think about things you can add to it, like small details such as what your mom and dad were doing when you got home. Were they drinking coffee? If so, did the aroma drift into your nostrils? Add small things like that into your plot, and any idea, including a diary entry, can work out well. Good luck, Kurt, and btw, I kinda liked it