Martial arts is about self-defense not about trying to look tough, so don't worry about it. I had similar physical problems when I started, but it will build your confidence and your coordination.
Don't be so hard on yourself, ok? You're not boring and you're not a screw-up.
One of my civilization 4 discs is scratched. I still have a valid CD Key, but cannot install because my computer cannot read the scratched disc. Is there a way I can get around this issue, or do I need to buy a new copy?