The more you write the better you'll get better.
I'd just like to get you advice to aid you in making future songs. I don't know what kind of software you're using to make songs, but I'll bet it's Fruity Loops. It's a great start for anyone to get the basics of song making. I have friends that bash it because of all the other programs that are out there. My arguement is that if you can take a cheap guitar and have someone that's awesome at guitar play on it they can make it sound really good. If you give that some person the best guitar money can buy they'll make it sound freakin awesome. What I'm saying is keep on writing and experimenting with the tools you have and you'll get better and better. Once you make what you have sound good I'd get better equipment and then the sky is the limit. All the songs I've submited except "Prisioners Without Chains" were made with Fruity Loops. Check them out if you'd like to see the difference between doing alright with a cheap program compared to a better program.