I like the feeling in this one.
I have no doubt that the reason this is your most popular song is because you put a good amount of feeling in it, and, based on the fact it only took 2 hours, you probably just wrote something off the top of your head, which is a good thing! Now, to make it better, take what you have and add more passionate stuff to it!
Great job, man. You said something about thinking I was great at writing music, and I personally don't like tooting my own horn lol, but if you think I am, then know this: I started out writing crap that is 100x worse that this, haha.
Just keep up writing, and you'll go far.