Still not good enough

I finished the Harry Potter book last night (or rather this morning) at 2:00 a.m. I am very upset with J.K. Rowling and am feeling rather murderous towards her at the moment. All I can say is she'd better get that seventh book written, and if she kills off anymore characters I am very fond of I will be even more upset than I am.
Today I had a tennis lesson... forehands and backhands were good, but I think I looked a bit like a dancing hippopotomus trying to hit those volleys and swinging wildly at (and missing) overhands. Oh well, it will come. Scott (the coach/teacher) said that if I just keep at it all year, I have a good chance of making varsity next spring.
I don't think I'm going to do soccer this year. I could probably make J.V., but I think I'm better at debate than I am at soccer, and I enjoy practices more. I love soccer games, I love them so much, but all we do at practices is run and get yelled at, so why torture myself for a few good moments in soccer when I can have months of good moments in debate? Even if I have a major losing streak in debate this year, I love it more than soccer.
Well I got home from tennis today and had an email from the Ayn Rand people... I wrote an essay way back in November I think on Anthem, and it was a really crappy essay, it did not deserve to see the light of day, but it was a finalist in the contest, top 150 out of 9,000, and I get some money, which is nice.
Writing awards won in the past two years:
-Got into Signatures to Big Sky or whatever it's called
-Got a poem published in an anthology (crappy one, but still)
-Novel won second in the nation in Scholastic contest (REALLY big deal)
-Letter to the Author contest, was a finalist in Montana (another really crappy job on that letter, but hey, if they liked it...)
-First Place in region for poetry, short story, and short short story in scholastic contest this year... my horrid novel did not win anything, but then again it really didn't deserve to, I need to burn it and forget I ever tried to write it... I've started on a different novel
-Ayn Rand essay contest finalist.
Okay, that's pretty cool, I'm getting the point that I should keep up with writing... over the past few years I've also won many awards in math (American math contest awards) a few in science (biology olympiad), some art awards (back in middle school), a bunch of music awards, spelling bees, and I am struggling to succeed in debate (may never happen, but like I said, debate is a kick-butt sport). All in all I've done pretty well. I only wish I was better at soccer. I'm getting there at tennis. Also, I don't believe I'll ever win anything in history/geography. That's Matt's stuff. He's good at it. REALLY good. He was a geography bee state champion two years I think in a row.
I AM SUCCESSFUL. I AM.
Why do I feel like I'm not good enough?